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Return the part of a string after a specified substring.
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stdlib-js/string-substring-after
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Return the part of a string after a specified substring.
importsubstringAfterfrom'https://cdn.jsdelivr.net/gh/stdlib-js/string-substring-after@deno/mod.js';
Returns the part of a string after a specified substring.
varstr='beep boop';varout=substringAfter(str,'o');// returns 'op'out=substringAfter(str,' ');// returns 'boop'
By default, the search starts at the beginning of the string. To start searching from a different index, provide afromIndex argument:
varstr='boop baz boop';varout=substringAfter(str,'o',3);// returns 'op'
- If a substring is not present in a provided string, the function returns an empty string.
- If provided an empty substring, the function returns the input string.
- If
fromIndexis less than0or greater thanstr.length, the search starts at index0andstr.length, respectively.
importsubstringAfterfrom'https://cdn.jsdelivr.net/gh/stdlib-js/string-substring-after@deno/mod.js';varstr='To be, or not to be, that is the question.';varout=substringAfter(str,', ');// returns 'or not to be, that is the question.'out=substringAfter(str,'to be');// returns ', that is the question.'out=substringAfter(str,'question.');// returns ''out=substringAfter(str,'xyz');// returns ''out=substringAfter(str,'');// returns 'To be, or not to be, that is the question.'
@stdlib/string-substring-before:return the part of a string before a specified substring.@stdlib/string-substring-before-last:return the part of a string before the last occurrence of a specified substring.@stdlib/string-substring-after-last:return the part of a string after the last occurrence of a specified substring.
This package is part ofstdlib, a standard library with an emphasis on numerical and scientific computing. The library provides a collection of robust, high performance libraries for mathematics, statistics, streams, utilities, and more.
For more information on the project, filing bug reports and feature requests, and guidance on how to developstdlib, see the main projectrepository.
SeeLICENSE.
Copyright © 2016-2025. The StdlibAuthors.
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Return the part of a string after a specified substring.
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