Uh oh!
There was an error while loading.Please reload this page.
- Notifications
You must be signed in to change notification settings - Fork0
Return the part of a string before a specified substring.
License
stdlib-js/string-substring-before
Folders and files
| Name | Name | Last commit message | Last commit date | |
|---|---|---|---|---|
Repository files navigation
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 onGitHub, and please considerfinancially supporting stdlib. We greatly appreciate your continued support!
Return the part of a string before a specified substring.
importsubstringBeforefrom'https://cdn.jsdelivr.net/gh/stdlib-js/string-substring-before@esm/index.mjs';
Returns the part of a string before a specified substring.
varstr='beep boop';varout=substringBefore(str,' ');// returns 'beep'out=substringBefore(str,'o');// returns 'beep b'
- If a substring is not present in a provided string, the function returns the input string.
- If provided an empty substring, the function returns an empty string.
<!DOCTYPE html><htmllang="en"><body><scripttype="module">importsubstringBeforefrom'https://cdn.jsdelivr.net/gh/stdlib-js/string-substring-before@esm/index.mjs';varout=substringBefore('beep boop','p');// returns 'bee'out=substringBefore('Hello World!','xyz');// returns 'Hello World!'out=substringBefore('Hello World!','');// returns ''out=substringBefore('','xyz');// returns ''</script></body></html>
@stdlib/string-substring-before-last:return the part of a string before the last occurrence of a specified substring.@stdlib/string-substring-after:return the part of a string after 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.
About
Return the part of a string before a specified substring.
Topics
Resources
License
Code of conduct
Contributing
Security policy
Uh oh!
There was an error while loading.Please reload this page.
Stars
Watchers
Forks
Sponsor this project
Uh oh!
There was an error while loading.Please reload this page.
Packages0
Uh oh!
There was an error while loading.Please reload this page.