Oct 12, 2025
diff --git a/1-js/05-data-types/03-string/article.md b/1-js/05-data-types/03-string/article.md

 ## Getting a substring

 There are 3 methods in JavaScript to get a substring: `substring`, `substr` and `slice`.
 There are 3 methods in JavaScript to get a substring: `slice`, `substring` and `substr`.

 `str.slice(start [, end])`
 : Returns the part of the string from `start` to (but not including) `end`.
    ```

 `str.substring(start [, end])`
 : Returns the part of the string *between* `start` and `end` (not including `end`).

    This is almost the same as `slice`, but it allows `start` to be greater than `end` (in this case it simply swaps `start` and `end` values).
 : Like `slice`, returns the part of the string from `start` to (but not including) `end`; however, it allows `start` to be greater than `end` (in this case it simply swaps `start` and `end` values).

    For instance:


 | method | selects... | negatives |
 |--------|-----------|-----------|
 | `slice(start, end)` | from `start` to`end` (not including `end`) | allows negatives |
 | `substring(start, end)` |between `start`and `end` (not including `end`)| negative values mean `0` |
 | `slice(start, end)` | from `start` to(butnot including) `end` | allows negatives |
 | `substring(start, end)` |from `start`to (butnot including) `end`| negative values mean `0` |
 | `substr(start, length)` | from `start` get `length` characters | allows negative `start` |

 ```smart header="Which one to choose?"
Original file line number	Diff line number	Diff line change
Expand Up		@@ -326,7 +326,7 @@ alert( "Wid!get/!".endsWith("get") ); // true, "Widget" ends with "get"

		## Getting a substring

		There are 3 methods in JavaScript to get a substring: `substring`, `substr` and `slice`.
		There are 3 methods in JavaScript to get a substring: `slice`, `substring` and `substr`.

		`str.slice(start [, end])`
		: Returns the part of the string from `start` to (but not including) `end`.
Expand DownExpand Up		@@ -356,9 +356,7 @@ There are 3 methods in JavaScript to get a substring: `substring`, `substr` and
		```

		`str.substring(start [, end])`
		: Returns the part of the string between `start` and `end` (not including `end`).

		This is almost the same as `slice`, but it allows `start` to be greater than `end` (in this case it simply swaps `start` and `end` values).
		: Like `slice`, returns the part of the string from `start` to (but not including) `end`; however, it allows `start` to be greater than `end` (in this case it simply swaps `start` and `end` values).

		For instance:

Expand DownExpand Up		@@ -400,8 +398,8 @@ Let's recap these methods to avoid any confusion:

		\| method \| selects... \| negatives \|
		\|--------\|-----------\|-----------\|
		\| `slice(start, end)` \| from `start` to`end` (not including `end`) \| allows negatives \|
		\| `substring(start, end)` \|between `start`and `end` (not including `end`)\| negative values mean `0` \|
		\| `slice(start, end)` \| from `start` to(butnot including) `end` \| allows negatives \|
		\| `substring(start, end)` \|from `start`to (butnot including) `end`\| negative values mean `0` \|
		\| `substr(start, length)` \| from `start` get `length` characters \| allows negative `start` \|

		```smart header="Which one to choose?"
Expand Down