@stdlib/string-substring-after

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.

When you use stdlib, you can be absolutely certain that you are using the most thorough, rigorous, well-written, studied, documented, tested, measured, and high-quality code out there.

To join us in bringing numerical computing to the web, get started by checking us out on GitHub, and please consider financially supporting stdlib. We greatly appreciate your continued support!

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.'

See Also

• @stdlib/string-substring-after-cli: CLI package for use as a command-line utility.
• @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.

---

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

---

License

See LICENSE.

Copyright

Copyright © 2016-2024. The Stdlib Authors.