String

A built-in type for strings.

Description

This is the built-in string Variant type (and the one used by GDScript). Strings may contain any number of Unicode characters, and expose methods useful for manipulating and generating strings. Strings are reference-counted and use a copy-on-write approach (every modification to a string returns a newString), so passing them around is cheap in resources.

Some string methods have corresponding variations. Variations suffixed withn (countn(),findn(),replacen(), etc.) arecase-insensitive (they make no distinction between uppercase and lowercase letters). Method variations prefixed withr (rfind(),rsplit(), etc.) are reversed, and start from the end of the string, instead of the beginning.

To convert anyVariant to or from a string, see@GlobalScope.str(),@GlobalScope.str_to_var(), and@GlobalScope.var_to_str().

Note: In a boolean context, a string will evaluate tofalse if it is empty (""). Otherwise, a string will always evaluate totrue.

Note

There are notable differences when using this API with C#. SeeC# API differences to GDScript for more information.

Tutorials

Constructors

String

String()

String

String(from:String)

String

String(from:NodePath)

String

String(from:StringName)

Methods

bool

begins_with(text:String)const

PackedStringArray

bigrams()const

int

bin_to_int()const

String

c_escape()const

String

c_unescape()const

String

capitalize()const

int

casecmp_to(to:String)const

String

chr(char:int)static

bool

contains(what:String)const

bool

containsn(what:String)const

int

count(what:String, from:int = 0, to:int = 0)const

int

countn(what:String, from:int = 0, to:int = 0)const

String

dedent()const

bool

ends_with(text:String)const

String

erase(position:int, chars:int = 1)const

int

filecasecmp_to(to:String)const

int

filenocasecmp_to(to:String)const

int

find(what:String, from:int = 0)const

int

findn(what:String, from:int = 0)const

String

format(values:Variant, placeholder:String = "{_}")const

String

get_base_dir()const

String

get_basename()const

String

get_extension()const

String

get_file()const

String

get_slice(delimiter:String, slice:int)const

int

get_slice_count(delimiter:String)const

String

get_slicec(delimiter:int, slice:int)const

int

hash()const

PackedByteArray

hex_decode()const

int

hex_to_int()const

String

humanize_size(size:int)static

String

indent(prefix:String)const

String

insert(position:int, what:String)const

bool

is_absolute_path()const

bool

is_empty()const

bool

is_relative_path()const

bool

is_subsequence_of(text:String)const

bool

is_subsequence_ofn(text:String)const

bool

is_valid_ascii_identifier()const

bool

is_valid_filename()const

bool

is_valid_float()const

bool

is_valid_hex_number(with_prefix:bool = false)const

bool

is_valid_html_color()const

bool

is_valid_identifier()const

bool

is_valid_int()const

bool

is_valid_ip_address()const

bool

is_valid_unicode_identifier()const

String

join(parts:PackedStringArray)const

String

json_escape()const

String

left(length:int)const

int

length()const

String

lpad(min_length:int, character:String = " ")const

String

lstrip(chars:String)const

bool

match(expr:String)const

bool

matchn(expr:String)const

PackedByteArray

md5_buffer()const

String

md5_text()const

int

naturalcasecmp_to(to:String)const

int

naturalnocasecmp_to(to:String)const

int

nocasecmp_to(to:String)const

String

num(number:float, decimals:int = -1)static

String

num_int64(number:int, base:int = 10, capitalize_hex:bool = false)static

String

num_scientific(number:float)static

String

num_uint64(number:int, base:int = 10, capitalize_hex:bool = false)static

String

pad_decimals(digits:int)const

String

pad_zeros(digits:int)const

String

path_join(file:String)const

String

repeat(count:int)const

String

replace(what:String, forwhat:String)const

String

replacen(what:String, forwhat:String)const

String

reverse()const

int

rfind(what:String, from:int = -1)const

int

rfindn(what:String, from:int = -1)const

String

right(length:int)const

String

rpad(min_length:int, character:String = " ")const

PackedStringArray

rsplit(delimiter:String = "", allow_empty:bool = true, maxsplit:int = 0)const

String

rstrip(chars:String)const

PackedByteArray

sha1_buffer()const

String

sha1_text()const

PackedByteArray

sha256_buffer()const

String

sha256_text()const

float

similarity(text:String)const

String

simplify_path()const

PackedStringArray

split(delimiter:String = "", allow_empty:bool = true, maxsplit:int = 0)const

PackedFloat64Array

split_floats(delimiter:String, allow_empty:bool = true)const

String

strip_edges(left:bool = true, right:bool = true)const

String

strip_escapes()const

String

substr(from:int, len:int = -1)const

PackedByteArray

to_ascii_buffer()const

String

to_camel_case()const

float

to_float()const

int

to_int()const

String

to_lower()const

String

to_pascal_case()const

String

to_snake_case()const

String

to_upper()const

PackedByteArray

to_utf8_buffer()const

PackedByteArray

to_utf16_buffer()const

PackedByteArray

to_utf32_buffer()const

PackedByteArray

to_wchar_buffer()const

String

trim_prefix(prefix:String)const

String

trim_suffix(suffix:String)const

int

unicode_at(at:int)const

String

uri_decode()const

String

uri_encode()const

String

validate_filename()const

String

validate_node_name()const

String

xml_escape(escape_quotes:bool = false)const

String

xml_unescape()const

Operators

bool

operator !=(right:String)

bool

operator !=(right:StringName)

String

operator %(right:Variant)

String

operator +(right:String)

String

operator +(right:StringName)

bool

operator <(right:String)

bool

operator <=(right:String)

bool

operator ==(right:String)

bool

operator ==(right:StringName)

bool

operator >(right:String)

bool

operator >=(right:String)

String

operator [](index:int)


Constructor Descriptions

StringString()🔗

Constructs an emptyString ("").


StringString(from:String)

Constructs aString as a copy of the givenString.


StringString(from:NodePath)

Constructs a newString from the givenNodePath.


StringString(from:StringName)

Constructs a newString from the givenStringName.


Method Descriptions

boolbegins_with(text:String)const🔗

Returnstrue if the string begins with the giventext. See alsoends_with().


PackedStringArraybigrams()const🔗

Returns an array containing the bigrams (pairs of consecutive characters) of this string.

print("Get up!".bigrams())# Prints ["Ge", "et", "t ", " u", "up", "p!"]

intbin_to_int()const🔗

Converts the string representing a binary number into anint. The string may optionally be prefixed with"0b", and an additional- prefix for negative numbers.

print("101".bin_to_int())# Prints 5print("0b101".bin_to_int())# Prints 5print("-0b10".bin_to_int())# Prints -2

Stringc_escape()const🔗

Returns a copy of the string with special characters escaped using the C language standard.


Stringc_unescape()const🔗

Returns a copy of the string with escaped characters replaced by their meanings. Supported escape sequences are\',\",\\,\a,\b,\f,\n,\r,\t,\v.

Note: Unlike the GDScript parser, this method doesn't support the\uXXXX escape sequence.


Stringcapitalize()const🔗

Changes the appearance of the string: replaces underscores (_) with spaces, adds spaces before uppercase letters in the middle of a word, converts all letters to lowercase, then converts the first one and each one following a space to uppercase.

"move_local_x".capitalize()# Returns "Move Local X""sceneFile_path".capitalize()# Returns "Scene File Path""2D, FPS, PNG".capitalize()# Returns "2d, Fps, Png"

intcasecmp_to(to:String)const🔗

Performs a case-sensitive comparison to another string. Returns-1 if less than,1 if greater than, or0 if equal. "Less than" and "greater than" are determined by theUnicode code points of each string, which roughly matches the alphabetical order.

With different string lengths, returns1 if this string is longer than theto string, or-1 if shorter. Note that the length of empty strings isalways0.

To get abool result from a string comparison, use the== operator instead. See alsonocasecmp_to(),filecasecmp_to(), andnaturalcasecmp_to().


Stringchr(char:int)static🔗

Returns a single Unicode character from the decimalchar. You may useunicodelookup.com orunicode.org as points of reference.

print(String.chr(65))# Prints "A"print(String.chr(129302))# Prints "🤖" (robot face emoji)

boolcontains(what:String)const🔗

Returnstrue if the string containswhat. In GDScript, this corresponds to thein operator.

print("Node".contains("de"))# Prints trueprint("team".contains("I"))# Prints falseprint("I"in"team")# Prints false

If you need to know wherewhat is within the string, usefind(). See alsocontainsn().


boolcontainsn(what:String)const🔗

Returnstrue if the string containswhat,ignoring case.

If you need to know wherewhat is within the string, usefindn(). See alsocontains().


intcount(what:String, from:int = 0, to:int = 0)const🔗

Returns the number of occurrences of the substringwhat betweenfrom andto positions. Ifto is 0, the search continues until the end of the string.


intcountn(what:String, from:int = 0, to:int = 0)const🔗

Returns the number of occurrences of the substringwhat betweenfrom andto positions,ignoring case. Ifto is 0, the search continues until the end of the string.


Stringdedent()const🔗

Returns a copy of the string with indentation (leading tabs and spaces) removed. See alsoindent() to add indentation.


boolends_with(text:String)const🔗

Returnstrue if the string ends with the giventext. See alsobegins_with().


Stringerase(position:int, chars:int = 1)const🔗

Returns a string withchars characters erased starting fromposition. Ifchars goes beyond the string's length given the specifiedposition, fewer characters will be erased from the returned string. Returns an empty string if eitherposition orchars is negative. Returns the original string unmodified ifchars is0.


intfilecasecmp_to(to:String)const🔗

Likenaturalcasecmp_to() but prioritizes strings that begin with periods (.) and underscores (_) before any other character. Useful when sorting folders or file names.

To get abool result from a string comparison, use the== operator instead. See alsofilenocasecmp_to(),naturalcasecmp_to(), andcasecmp_to().


intfilenocasecmp_to(to:String)const🔗

Likenaturalnocasecmp_to() but prioritizes strings that begin with periods (.) and underscores (_) before any other character. Useful when sorting folders or file names.

To get abool result from a string comparison, use the== operator instead. See alsofilecasecmp_to(),naturalnocasecmp_to(), andnocasecmp_to().


intfind(what:String, from:int = 0)const🔗

Returns the index of thefirst occurrence ofwhat in this string, or-1 if there are none. The search's start can be specified withfrom, continuing to the end of the string.

print("Team".find("I"))# Prints -1print("Potato".find("t"))# Prints 2print("Potato".find("t",3))# Prints 4print("Potato".find("t",5))# Prints -1

Note: If you just want to know whether the string containswhat, usecontains(). In GDScript, you may also use thein operator.


intfindn(what:String, from:int = 0)const🔗

Returns the index of thefirstcase-insensitive occurrence ofwhat in this string, or-1 if there are none. The starting search index can be specified withfrom, continuing to the end of the string.


Stringformat(values:Variant, placeholder:String = "{_}")const🔗

Formats the string by replacing all occurrences ofplaceholder with the elements ofvalues.

values can be aDictionary, anArray, or anObject. Any underscores inplaceholder will be replaced with the corresponding keys in advance. Array elements use their index as keys.

# Prints "Waiting for Godot is a play by Samuel Beckett, and Godot Engine is named after it."varuse_array_values="Waiting for {0} is a play by {1}, and {0} Engine is named after it."print(use_array_values.format(["Godot","Samuel Beckett"]))# Prints "User 42 is Godot."print("User {id} is {name}.".format({"id":42,"name":"Godot"}))

Some additional handling is performed whenvalues is anArray. Ifplaceholder does not contain an underscore, the elements of thevalues array will be used to replace one occurrence of the placeholder in order; If an element ofvalues is another 2-element array, it'll be interpreted as a key-value pair.

# Prints "User 42 is Godot."print("User {} is {}.".format([42,"Godot"],"{}"))print("User {id} is {name}.".format([["id",42],["name","Godot"]]))

When passing anObject, the property names fromObject.get_property_list() are used as keys.

# Prints "Visible true, position (0, 0)"varnode=Node2D.new()print("Visible {visible}, position {position}".format(node))

See also theGDScript format string tutorial.

Note: Each replacement is done sequentially for each element ofvalues,not all at once. This means that if any element is inserted and it contains another placeholder, it may be changed by the next replacement. While this can be very useful, it often causes unexpected results. If not necessary, make surevalues's elements do not contain placeholders.

print("{0} {1}".format(["{1}","x"]))# Prints "x x"print("{0} {1}".format(["x","{0}"]))# Prints "x {0}"print("{a} {b}".format({"a":"{b}","b":"c"}))# Prints "c c"print("{a} {b}".format({"b":"c","a":"{b}"}))# Prints "{b} c"

Note: In C#, it's recommended tointerpolate strings with "$", instead.


Stringget_base_dir()const🔗

If the string is a valid file path, returns the base directory name.

vardir_path="/path/to/file.txt".get_base_dir()# dir_path is "/path/to"

Stringget_basename()const🔗

If the string is a valid file path, returns the full file path, without the extension.

varbase="/path/to/file.txt".get_basename()# base is "/path/to/file"

Stringget_extension()const🔗

If the string is a valid file name or path, returns the file extension without the leading period (.). Otherwise, returns an empty string.

vara="/path/to/file.txt".get_extension()# a is "txt"varb="cool.txt".get_extension()# b is "txt"varc="cool.font.tres".get_extension()# c is "tres"vard=".pack1".get_extension()# d is "pack1"vare="file.txt.".get_extension()# e is ""varf="file.txt..".get_extension()# f is ""varg="txt".get_extension()# g is ""varh="".get_extension()# h is ""

Stringget_file()const🔗

If the string is a valid file path, returns the file name, including the extension.

varfile="/path/to/icon.png".get_file()# file is "icon.png"

Stringget_slice(delimiter:String, slice:int)const🔗

Splits the string using adelimiter and returns the substring at indexslice. Returns the original string ifdelimiter does not occur in the string. Returns an empty string if theslice does not exist.

This is faster thansplit(), if you only need one substring.

print("i/am/example/hi".get_slice("/",2))# Prints "example"

intget_slice_count(delimiter:String)const🔗

Returns the total number of slices when the string is split with the givendelimiter (seesplit()).


Stringget_slicec(delimiter:int, slice:int)const🔗

Splits the string using a Unicode character with codedelimiter and returns the substring at indexslice. Returns an empty string if theslice does not exist.

This is faster thansplit(), if you only need one substring.


inthash()const🔗

Returns the 32-bit hash value representing the string's contents.

Note: Strings with equal hash values arenot guaranteed to be the same, as a result of hash collisions. On the contrary, strings with different hash values are guaranteed to be different.


PackedByteArrayhex_decode()const🔗

Decodes a hexadecimal string as aPackedByteArray.

vartext="hello world"varencoded=text.to_utf8_buffer().hex_encode()# outputs "68656c6c6f20776f726c64"print(buf.hex_decode().get_string_from_utf8())

inthex_to_int()const🔗

Converts the string representing a hexadecimal number into anint. The string may be optionally prefixed with"0x", and an additional- prefix for negative numbers.

print("0xff".hex_to_int())# Prints 255print("ab".hex_to_int())# Prints 171

Stringhumanize_size(size:int)static🔗

Convertssize which represents a number of bytes into a human-readable form.

The result is inIEC prefix format, which may end in either"B","KiB","MiB","GiB","TiB","PiB", or"EiB".


Stringindent(prefix:String)const🔗

Indents every line of the string with the givenprefix. Empty lines are not indented. See alsodedent() to remove indentation.

For example, the string can be indented with two tabulations using"\t\t", or four spaces using"   ".


Stringinsert(position:int, what:String)const🔗

Insertswhat at the givenposition in the string.


boolis_absolute_path()const🔗

Returnstrue if the string is a path to a file or directory, and its starting point is explicitly defined. This method is the opposite ofis_relative_path().

This includes all paths starting with"res://","user://","C:\","/", etc.


boolis_empty()const🔗

Returnstrue if the string's length is0 (""). See alsolength().


boolis_relative_path()const🔗

Returnstrue if the string is a path, and its starting point is dependent on context. The path could begin from the current directory, or the currentNode (if the string is derived from aNodePath), and may sometimes be prefixed with"./". This method is the opposite ofis_absolute_path().


boolis_subsequence_of(text:String)const🔗

Returnstrue if all characters of this string can be found intext in their original order.

vartext="Wow, incredible!"print("inedible".is_subsequence_of(text))# Prints trueprint("Word!".is_subsequence_of(text))# Prints trueprint("Window".is_subsequence_of(text))# Prints falseprint("".is_subsequence_of(text))# Prints true

boolis_subsequence_ofn(text:String)const🔗

Returnstrue if all characters of this string can be found intext in their original order,ignoring case.


boolis_valid_ascii_identifier()const🔗

Returnstrue if this string is a valid ASCII identifier. A valid ASCII identifier may contain only letters, digits, and underscores (_), and the first character may not be a digit.

print("node_2d".is_valid_ascii_identifier())# Prints trueprint("TYPE_FLOAT".is_valid_ascii_identifier())# Prints trueprint("1st_method".is_valid_ascii_identifier())# Prints falseprint("MyMethod#2".is_valid_ascii_identifier())# Prints false

See alsois_valid_unicode_identifier().


boolis_valid_filename()const🔗

Returnstrue if this string does not contain characters that are not allowed in file names (:/\?*"|%<>).


boolis_valid_float()const🔗

Returnstrue if this string represents a valid floating-point number. A valid float may contain only digits, one decimal point (.), and the exponent letter (e). It may also be prefixed with a positive (+) or negative (-) sign. Any valid integer is also a valid float (seeis_valid_int()). See alsoto_float().

print("1.7".is_valid_float())# Prints trueprint("24".is_valid_float())# Prints trueprint("7e3".is_valid_float())# Prints trueprint("Hello".is_valid_float())# Prints false

boolis_valid_hex_number(with_prefix:bool = false)const🔗

Returnstrue if this string is a valid hexadecimal number. A valid hexadecimal number only contains digits or lettersA toF (either uppercase or lowercase), and may be prefixed with a positive (+) or negative (-) sign.

Ifwith_prefix istrue, the hexadecimal number needs to prefixed by"0x" to be considered valid.

print("A08E".is_valid_hex_number())# Prints trueprint("-AbCdEf".is_valid_hex_number())# Prints trueprint("2.5".is_valid_hex_number())# Prints falseprint("0xDEADC0DE".is_valid_hex_number(true))# Prints true

boolis_valid_html_color()const🔗

Returnstrue if this string is a valid color in hexadecimal HTML notation. The string must be a hexadecimal value (seeis_valid_hex_number()) of either 3, 4, 6 or 8 digits, and may be prefixed by a hash sign (#). Other HTML notations for colors, such as names orhsl(), are not considered valid. See alsoColor.html().


boolis_valid_identifier()const🔗

Deprecated: Useis_valid_ascii_identifier() instead.

Returnstrue if this string is a valid identifier. A valid identifier may contain only letters, digits and underscores (_), and the first character may not be a digit.

print("node_2d".is_valid_identifier())# Prints trueprint("TYPE_FLOAT".is_valid_identifier())# Prints trueprint("1st_method".is_valid_identifier())# Prints falseprint("MyMethod#2".is_valid_identifier())# Prints false

boolis_valid_int()const🔗

Returnstrue if this string represents a valid integer. A valid integer only contains digits, and may be prefixed with a positive (+) or negative (-) sign. See alsoto_int().

print("7".is_valid_int())# Prints trueprint("1.65".is_valid_int())# Prints falseprint("Hi".is_valid_int())# Prints falseprint("+3".is_valid_int())# Prints trueprint("-12".is_valid_int())# Prints true

boolis_valid_ip_address()const🔗

Returnstrue if this string represents a well-formatted IPv4 or IPv6 address. This method considersreserved IP addresses such as"0.0.0.0" and"ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff" as valid.


boolis_valid_unicode_identifier()const🔗

Returnstrue if this string is a valid Unicode identifier.

A valid Unicode identifier must begin with a Unicode character of classXID_Start or"_", and may contain Unicode characters of classXID_Continue in the other positions.

print("node_2d".is_valid_unicode_identifier())# Prints trueprint("1st_method".is_valid_unicode_identifier())# Prints falseprint("MyMethod#2".is_valid_unicode_identifier())# Prints falseprint("állóképesség".is_valid_unicode_identifier())# Prints trueprint("выносливость".is_valid_unicode_identifier())# Prints trueprint("体力".is_valid_unicode_identifier())# Prints true

See alsois_valid_ascii_identifier().

Note: This method checks identifiers the same way as GDScript. SeeTextServer.is_valid_identifier() for more advanced checks.


Stringjoin(parts:PackedStringArray)const🔗

Returns the concatenation ofparts' elements, with each element separated by the string calling this method. This method is the opposite ofsplit().

varfruits=["Apple","Orange","Pear","Kiwi"]print(", ".join(fruits))# Prints "Apple, Orange, Pear, Kiwi"print("---".join(fruits))# Prints "Apple---Orange---Pear---Kiwi"

Stringjson_escape()const🔗

Returns a copy of the string with special characters escaped using the JSON standard. Because it closely matches the C standard, it is possible to usec_unescape() to unescape the string, if necessary.


Stringleft(length:int)const🔗

Returns the firstlength characters from the beginning of the string. Iflength is negative, strips the lastlength characters from the string's end.

print("Hello World!".left(3))# Prints "Hel"print("Hello World!".left(-4))# Prints "Hello Wo"

intlength()const🔗

Returns the number of characters in the string. Empty strings ("") always return0. See alsois_empty().


Stringlpad(min_length:int, character:String = " ")const🔗

Formats the string to be at leastmin_length long by addingcharacters to the left of the string, if necessary. See alsorpad().


Stringlstrip(chars:String)const🔗

Removes a set of characters defined inchars from the string's beginning. See alsorstrip().

Note:chars is not a prefix. Usetrim_prefix() to remove a single prefix, rather than a set of characters.


boolmatch(expr:String)const🔗

Does a simple expression match (also called "glob" or "globbing"), where* matches zero or more arbitrary characters and? matches any single character except a period (.). An empty string or empty expression always evaluates tofalse.


boolmatchn(expr:String)const🔗

Does a simplecase-insensitive expression match, where* matches zero or more arbitrary characters and? matches any single character except a period (.). An empty string or empty expression always evaluates tofalse.


PackedByteArraymd5_buffer()const🔗

Returns theMD5 hash of the string as aPackedByteArray.


Stringmd5_text()const🔗

Returns theMD5 hash of the string as anotherString.


intnaturalcasecmp_to(to:String)const🔗

Performs acase-sensitive,natural order comparison to another string. Returns-1 if less than,1 if greater than, or0 if equal. "Less than" or "greater than" are determined by theUnicode code points of each string, which roughly matches the alphabetical order.

When used for sorting, natural order comparison orders sequences of numbers by the combined value of each digit as is often expected, instead of the single digit's value. A sorted sequence of numbered strings will be["1","2","3",...], not["1","10","2","3",...].

With different string lengths, returns1 if this string is longer than theto string, or-1 if shorter. Note that the length of empty strings isalways0.

To get abool result from a string comparison, use the== operator instead. See alsonaturalnocasecmp_to(),filecasecmp_to(), andnocasecmp_to().


intnaturalnocasecmp_to(to:String)const🔗

Performs acase-insensitive,natural order comparison to another string. Returns-1 if less than,1 if greater than, or0 if equal. "Less than" or "greater than" are determined by theUnicode code points of each string, which roughly matches the alphabetical order. Internally, lowercase characters are converted to uppercase for the comparison.

When used for sorting, natural order comparison orders sequences of numbers by the combined value of each digit as is often expected, instead of the single digit's value. A sorted sequence of numbered strings will be["1","2","3",...], not["1","10","2","3",...].

With different string lengths, returns1 if this string is longer than theto string, or-1 if shorter. Note that the length of empty strings isalways0.

To get abool result from a string comparison, use the== operator instead. See alsonaturalcasecmp_to(),filenocasecmp_to(), andcasecmp_to().


intnocasecmp_to(to:String)const🔗

Performs acase-insensitive comparison to another string. Returns-1 if less than,1 if greater than, or0 if equal. "Less than" or "greater than" are determined by theUnicode code points of each string, which roughly matches the alphabetical order. Internally, lowercase characters are converted to uppercase for the comparison.

With different string lengths, returns1 if this string is longer than theto string, or-1 if shorter. Note that the length of empty strings isalways0.

To get abool result from a string comparison, use the== operator instead. See alsocasecmp_to(),filenocasecmp_to(), andnaturalnocasecmp_to().


Stringnum(number:float, decimals:int = -1)static🔗

Converts afloat to a string representation of a decimal number, with the number of decimal places specified indecimals.

Ifdecimals is-1 as by default, the string representation may only have up to 14 significant digits, with digits before the decimal point having priority over digits after.

Trailing zeros are not included in the string. The last digit is rounded, not truncated.

String.num(3.141593)# Returns "3.141593"String.num(3.141593,3)# Returns "3.142"String.num(3.14159300)# Returns "3.141593"# Here, the last digit will be rounded up,# which reduces the total digit count, since trailing zeros are removed:String.num(42.129999,5)# Returns "42.13"# If `decimals` is not specified, the maximum number of significant digits is 14:String.num(-0.0000012345432123454321)# Returns "-0.00000123454321"String.num(-10000.0000012345432123454321)# Returns "-10000.0000012345"

Stringnum_int64(number:int, base:int = 10, capitalize_hex:bool = false)static🔗

Converts the givennumber to a string representation, with the givenbase.

By default,base is set to decimal (10). Other common bases in programming include binary (2),octal (8), hexadecimal (16).

Ifcapitalize_hex istrue, digits higher than 9 are represented in uppercase.


Stringnum_scientific(number:float)static🔗

Converts the givennumber to a string representation, in scientific notation.

varn=-5.2e8print(n)# Prints -520000000print(String.num_scientific(n))# Prints -5.2e+08

Note: In C#, this method is not implemented. To achieve similar results, see C#'sStandard numeric format strings


Stringnum_uint64(number:int, base:int = 10, capitalize_hex:bool = false)static🔗

Converts the given unsignedint to a string representation, with the givenbase.

By default,base is set to decimal (10). Other common bases in programming include binary (2),octal (8), hexadecimal (16).

Ifcapitalize_hex istrue, digits higher than 9 are represented in uppercase.


Stringpad_decimals(digits:int)const🔗

Formats the string representing a number to have an exact number ofdigitsafter the decimal point.


Stringpad_zeros(digits:int)const🔗

Formats the string representing a number to have an exact number ofdigitsbefore the decimal point.


Stringpath_join(file:String)const🔗

Concatenatesfile at the end of the string as a subpath, adding/ if necessary.

Example:"this/is".path_join("path")=="this/is/path".


Stringrepeat(count:int)const🔗

Repeats this string a number of times.count needs to be greater than0. Otherwise, returns an empty string.


Stringreplace(what:String, forwhat:String)const🔗

Replaces all occurrences ofwhat inside the string with the givenforwhat.


Stringreplacen(what:String, forwhat:String)const🔗

Replaces allcase-insensitive occurrences ofwhat inside the string with the givenforwhat.


Stringreverse()const🔗

Returns the copy of this string in reverse order. This operation works on unicode codepoints, rather than sequences of codepoints, and may break things like compound letters or emojis.


intrfind(what:String, from:int = -1)const🔗

Returns the index of thelast occurrence ofwhat in this string, or-1 if there are none. The search's start can be specified withfrom, continuing to the beginning of the string. This method is the reverse offind().


intrfindn(what:String, from:int = -1)const🔗

Returns the index of thelastcase-insensitive occurrence ofwhat in this string, or-1 if there are none. The starting search index can be specified withfrom, continuing to the beginning of the string. This method is the reverse offindn().


Stringright(length:int)const🔗

Returns the lastlength characters from the end of the string. Iflength is negative, strips the firstlength characters from the string's beginning.

print("Hello World!".right(3))# Prints "ld!"print("Hello World!".right(-4))# Prints "o World!"

Stringrpad(min_length:int, character:String = " ")const🔗

Formats the string to be at leastmin_length long, by addingcharacters to the right of the string, if necessary. See alsolpad().


PackedStringArrayrsplit(delimiter:String = "", allow_empty:bool = true, maxsplit:int = 0)const🔗

Splits the string using adelimiter and returns an array of the substrings, starting from the end of the string. The splits in the returned array appear in the same order as the original string. Ifdelimiter is an empty string, each substring will be a single character.

Ifallow_empty isfalse, empty strings between adjacent delimiters are excluded from the array.

Ifmaxsplit is greater than0, the number of splits may not exceedmaxsplit. By default, the entire string is split, which is mostly identical tosplit().

varsome_string="One,Two,Three,Four"varsome_array=some_string.rsplit(",",true,1)print(some_array.size())# Prints 2print(some_array[0])# Prints "One,Two,Three"print(some_array[1])# Prints "Four"

Stringrstrip(chars:String)const🔗

Removes a set of characters defined inchars from the string's end. See alsolstrip().

Note:chars is not a suffix. Usetrim_suffix() to remove a single suffix, rather than a set of characters.


PackedByteArraysha1_buffer()const🔗

Returns theSHA-1 hash of the string as aPackedByteArray.


Stringsha1_text()const🔗

Returns theSHA-1 hash of the string as anotherString.


PackedByteArraysha256_buffer()const🔗

Returns theSHA-256 hash of the string as aPackedByteArray.


Stringsha256_text()const🔗

Returns theSHA-256 hash of the string as anotherString.


floatsimilarity(text:String)const🔗

Returns the similarity index (Sørensen-Dice coefficient) of this string compared to another. A result of1.0 means totally similar, while0.0 means totally dissimilar.

print("ABC123".similarity("ABC123"))# Prints 1.0print("ABC123".similarity("XYZ456"))# Prints 0.0print("ABC123".similarity("123ABC"))# Prints 0.8print("ABC123".similarity("abc123"))# Prints 0.4

Stringsimplify_path()const🔗

If the string is a valid file path, converts the string into a canonical path. This is the shortest possible path, without"./", and all the unnecessary".." and"/".

varsimple_path="./path/to///../file".simplify_path()print(simple_path)# Prints "path/file"

PackedStringArraysplit(delimiter:String = "", allow_empty:bool = true, maxsplit:int = 0)const🔗

Splits the string using adelimiter and returns an array of the substrings. Ifdelimiter is an empty string, each substring will be a single character. This method is the opposite ofjoin().

Ifallow_empty isfalse, empty strings between adjacent delimiters are excluded from the array.

Ifmaxsplit is greater than0, the number of splits may not exceedmaxsplit. By default, the entire string is split.

varsome_array="One,Two,Three,Four".split(",",true,2)print(some_array.size())# Prints 3print(some_array[0])# Prints "One"print(some_array[1])# Prints "Two"print(some_array[2])# Prints "Three,Four"

Note: If you only need one substring from the array, consider usingget_slice() which is faster. If you need to split strings with more complex rules, use theRegEx class instead.


PackedFloat64Arraysplit_floats(delimiter:String, allow_empty:bool = true)const🔗

Splits the string into floats by using adelimiter and returns aPackedFloat64Array.

Ifallow_empty isfalse, empty or invalidfloat conversions between adjacent delimiters are excluded.

vara="1,2,4.5".split_floats(",")# a is [1.0, 2.0, 4.5]varc="1| ||4.5".split_floats("|")# c is [1.0, 0.0, 0.0, 4.5]varb="1| ||4.5".split_floats("|",false)# b is [1.0, 4.5]

Stringstrip_edges(left:bool = true, right:bool = true)const🔗

Strips all non-printable characters from the beginning and the end of the string. These include spaces, tabulations (\t), and newlines (\n\r).

Ifleft isfalse, ignores the string's beginning. Likewise, ifright isfalse, ignores the string's end.


Stringstrip_escapes()const🔗

Strips all escape characters from the string. These include all non-printable control characters of the first page of the ASCII table (values from 0 to 31), such as tabulation (\t) and newline (\n,\r) characters, butnot spaces.


Stringsubstr(from:int, len:int = -1)const🔗

Returns part of the string from the positionfrom with lengthlen. Iflen is-1 (as by default), returns the rest of the string starting from the given position.


PackedByteArrayto_ascii_buffer()const🔗

Converts the string to anASCII/Latin-1 encodedPackedByteArray. This method is slightly faster thanto_utf8_buffer(), but replaces all unsupported characters with spaces. This is the inverse ofPackedByteArray.get_string_from_ascii().


Stringto_camel_case()const🔗

Returns the string converted tocamelCase.


floatto_float()const🔗

Converts the string representing a decimal number into afloat. This method stops on the first non-number character, except the first decimal point (.) and the exponent letter (e). See alsois_valid_float().

vara="12.35".to_float()# a is 12.35varb="1.2.3".to_float()# b is 1.2varc="12xy3".to_float()# c is 12.0vard="1e3".to_float()# d is 1000.0vare="Hello!".to_float()# e is 0.0

intto_int()const🔗

Converts the string representing an integer number into anint. This method removes any non-number character and stops at the first decimal point (.). See alsois_valid_int().

vara="123".to_int()# a is 123varb="x1y2z3".to_int()# b is 123varc="-1.2.3".to_int()# c is -1vard="Hello!".to_int()# d is 0

Stringto_lower()const🔗

Returns the string converted tolowercase.


Stringto_pascal_case()const🔗

Returns the string converted toPascalCase.


Stringto_snake_case()const🔗

Returns the string converted tosnake_case.

Note: Numbers followed by asingle letter are not separated in the conversion to keep some words (such as "2D") together.

"Node2D".to_snake_case()# Returns "node_2d""2nd place".to_snake_case()# Returns "2_nd_place""Texture3DAssetFolder".to_snake_case()# Returns "texture_3d_asset_folder"

Stringto_upper()const🔗

Returns the string converted toUPPERCASE.


PackedByteArrayto_utf8_buffer()const🔗

Converts the string to aUTF-8 encodedPackedByteArray. This method is slightly slower thanto_ascii_buffer(), but supports all UTF-8 characters. For most cases, prefer using this method. This is the inverse ofPackedByteArray.get_string_from_utf8().


PackedByteArrayto_utf16_buffer()const🔗

Converts the string to aUTF-16 encodedPackedByteArray. This is the inverse ofPackedByteArray.get_string_from_utf16().


PackedByteArrayto_utf32_buffer()const🔗

Converts the string to aUTF-32 encodedPackedByteArray. This is the inverse ofPackedByteArray.get_string_from_utf32().


PackedByteArrayto_wchar_buffer()const🔗

Converts the string to awide character (wchar_t, UTF-16 on Windows, UTF-32 on other platforms) encodedPackedByteArray. This is the inverse ofPackedByteArray.get_string_from_wchar().


Stringtrim_prefix(prefix:String)const🔗

Removes the givenprefix from the start of the string, or returns the string unchanged.


Stringtrim_suffix(suffix:String)const🔗

Removes the givensuffix from the end of the string, or returns the string unchanged.


intunicode_at(at:int)const🔗

Returns the character code at positionat.


Stringuri_decode()const🔗

Decodes the string from its URL-encoded format. This method is meant to properly decode the parameters in a URL when receiving an HTTP request. See alsouri_encode().

varurl="$DOCS_URL/?highlight=Godot%20Engine%3%docs"print(url.uri_decode())# Prints "$DOCS_URL/?highlight=Godot Engine:docs"

Stringuri_encode()const🔗

Encodes the string to URL-friendly format. This method is meant to properly encode the parameters in a URL when sending an HTTP request. See alsouri_decode().

varprefix="$DOCS_URL/?highlight="varurl=prefix+"Godot Engine:docs".uri_encode()print(url)# Prints "$DOCS_URL/?highlight=Godot%20Engine%3%docs"

Stringvalidate_filename()const🔗

Returns a copy of the string with all characters that are not allowed inis_valid_filename() replaced with underscores.


Stringvalidate_node_name()const🔗

Returns a copy of the string with all characters that are not allowed inNode.name (.:@/"%) replaced with underscores.


Stringxml_escape(escape_quotes:bool = false)const🔗

Returns a copy of the string with special characters escaped using the XML standard. Ifescape_quotes istrue, the single quote (') and double quote (") characters are also escaped.


Stringxml_unescape()const🔗

Returns a copy of the string with escaped characters replaced by their meanings according to the XML standard.


Operator Descriptions

booloperator !=(right:String)🔗

Returnstrue if both strings do not contain the same sequence of characters.


booloperator !=(right:StringName)🔗

Returnstrue if thisString is not equivalent to the givenStringName.


Stringoperator %(right:Variant)🔗

Formats theString, replacing the placeholders with one or more parameters. To pass multiple parameters,right needs to be anArray.

print("I caught%d fishes!"%2)# Prints "I caught 2 fishes!"varmy_message="Travelling to%s, at%2.2f km/h."varlocation="Deep Valley"varspeed=40.3485print(my_message%[location,speed])# Prints "Travelling to Deep Valley, at 40.35 km/h."

For more information, see theGDScript format strings tutorial.

Note: In C#, this operator is not available. Instead, seehow to interpolate strings with "$".


Stringoperator +(right:String)🔗

Appendsright at the end of thisString, also known as a string concatenation.


Stringoperator +(right:StringName)🔗

Appendsright at the end of thisString, returning aString. This is also known as a string concatenation.


booloperator <(right:String)🔗

Returnstrue if the leftString comes beforeright inUnicode order, which roughly matches the alphabetical order. Useful for sorting.


booloperator <=(right:String)🔗

Returnstrue if the leftString comes beforeright inUnicode order, which roughly matches the alphabetical order, or if both are equal.


booloperator ==(right:String)🔗

Returnstrue if both strings contain the same sequence of characters.


booloperator ==(right:StringName)🔗

Returnstrue if thisString is equivalent to the givenStringName.


booloperator >(right:String)🔗

Returnstrue if the leftString comes afterright inUnicode order, which roughly matches the alphabetical order. Useful for sorting.


booloperator >=(right:String)🔗

Returnstrue if the leftString comes afterright inUnicode order, which roughly matches the alphabetical order, or if both are equal.


Stringoperator [](index:int)🔗

Returns a newString that only contains the character atindex. Indices start from0. Ifindex is greater or equal to0, the character is fetched starting from the beginning of the string. Ifindex is a negative value, it is fetched starting from the end. Accessing a string out-of-bounds will cause a run-time error, pausing the project execution if run from the editor.


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