About stdlib...
We believe in a future in which the web is a preferred environment for numerical computation. To help realize this future, we've built stdlib. stdlib is a standard library, with an emphasis on numerical and scientific computation, written in JavaScript (and C) for execution in browsers and in Node.js.
The library is fully decomposable, being architected in such a way that you can swap out and mix and match APIs and functionality to cater to your exact preferences and use cases.
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Replace search occurrences with a replacement string.
npm install @stdlib/string-base-replaceAlternatively,
- To load the package in a website via a
scripttag without installation and bundlers, use the ES Module available on theesmbranch (see README). - If you are using Deno, visit the
denobranch (see README for usage intructions). - For use in Observable, or in browser/node environments, use the Universal Module Definition (UMD) build available on the
umdbranch (see README).
The branches.md file summarizes the available branches and displays a diagram illustrating their relationships.
To view installation and usage instructions specific to each branch build, be sure to explicitly navigate to the respective README files on each branch, as linked to above.
var replace = require( '@stdlib/string-base-replace' );Replaces search occurrences with a replacement string.
var out = replace( 'beep', /e/g, 'o' );
// returns 'boop'If provided a function as the third argument, the function is invoked for each match, and the function's return value is used as the replacement string.
function replacer( match, p1 ) {
return '/' + p1 + '/';
}
var str = 'Oranges and lemons';
var out = replace( str, /([^\s]+)/gi, replacer );
// returns '/Oranges/ /and/ /lemons/'- The function assumes that the
searchargument is a regular expression. Accordingly, the function should not be used as a general drop-in replacement forString.prototype.replace.
var capitalize = require( '@stdlib/string-base-capitalize' );
var replace = require( '@stdlib/string-base-replace' );
var out = replace( 'Hello World', /world/i, 'Mr. President' );
// returns 'Hello Mr. President'
function replacer( match, p1 ) {
return capitalize( p1 );
}
var str = 'Oranges and lemons say the bells of St. Clement\'s';
out = replace( str, /([^\s]*)/gi, replacer );
// returns 'Oranges And Lemons Say The Bells Of St. Clement\'s'@stdlib/string-base/replace-after: replace the substring after the first occurrence of a specified search string.@stdlib/string-base/replace-before: replace the substring before the first occurrence of a specified search string.@stdlib/string-base/replace-after-last: replace the substring after the last occurrence of a specified search string.@stdlib/string-base/replace-before-last: replace the substring before the last occurrence of a specified search string.
This package is part of stdlib, a standard library for JavaScript and Node.js, 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 develop stdlib, see the main project repository.
See LICENSE.
Copyright © 2016-2025. The Stdlib Authors.
