@stdlib/string-replace

Replace

Replace search occurrences with a replacement string.

Installation

npm install @stdlib/string-replace

Usage

var replace = require( '@stdlib/string-replace' );

replace( str, search, newval )

Replaces search occurrences with a replacement string.

var out = replace( 'beep', 'e', '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/'

Notes

• The function has one notable difference from String.prototype.replace. When provided a string as the search value, the function replaces all occurrences. To remove only the first match, use a regular expression.

  var out = replace( 'beep', /e/, 'o' );
  // returns 'boep'
  

Examples

var capitalize = require( '@stdlib/string-capitalize' );
var replace = require( '@stdlib/string-replace' );

var out;
var str;

out = replace( 'beep', 'e', 'o' );
// returns 'boop'

out = replace( 'Hello World', /world/i, 'Mr. President' );
// returns 'Hello Mr. President'

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'

function replacer( match, p1 ) {
    return capitalize( p1 );
}

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CLI

Installation

To use the module as a general utility, install the module globally

npm install -g @stdlib/string-replace

Usage

Usage: replace [options] [<string>] --search=<string> --newval=<string>

Options:

  -h,    --help                Print this message.
  -V,    --version             Print the package version.
         --search string       Search string.
         --newval string       Replacement string.

Examples

$ replace --search='/[eo]/' --newval=a beep
baap

To use as a standard stream,

$ echo -n 'boop' | replace --search='o' newval='e'
beep

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Notice

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.

Community

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License

See LICENSE.

Copyright

Copyright © 2016-2021. The Stdlib Authors.