@stdlib/string-substring-after NPM

substringAfter

Return the part of a string after a specified substring.

Installation

npm install @stdlib/string-substring-after

Usage

var substringAfter = require( '@stdlib/string-substring-after' );

substringAfter( str, search[, fromIndex] )

Returns the part of a string after a specified substring.

var str = 'beep boop';
var out = 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 a fromIndex argument:

var str = 'boop baz boop';
var out = substringAfter( str, 'o', 3 );
// returns 'op'

Notes

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 fromIndex is less than 0 or greater than str.length, the search starts at index 0 and str.length, respectively.

Examples

var substringAfter = require( '@stdlib/string-substring-after' );

var str = 'To be, or not to be, that is the question.';
var out = 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.'

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.