How to check if a string contains a certain substring?

JavaScript: How to check if a string contains a certain substring?

If you have a string foobar, you can check if it contains the string bar by doing this:

  1. let some_string = "foobar";
  2.  
  3. if (some_string.includes("foo")) {
  4.                 alert("contains it!") ;
  5. }

webdevetc profile pic
webdevetc

I am a 29 year old backend web developer from London, mostly focusing on PHP and Laravel lately. This (webdevetc.com) is my blog where I write about some web development topics (PHP, Laravel, Javascript, and some server stuff). contact me here.



More...


Comments and discussion about How to check if a string contains a certain substring?

Found this interesting? Maybe you want to read some more in this series?

Or see other topics in the JavaScript language

Or see other languages/frameworks:
PHP Laravel Composer Apache CentOS and Linux Stuff WordPress General Webdev and Programming Stuff JavaScript
Or see random questions

How to check if a user is logged in, inside a blade file?

How to round a number in JS?

How to add and remove items to an array in JS?

How to exclude URLs from the Laravel CSRF protection?

Why should you update APP_URL from from http://localhost?

How to provide a default model object for relationships?

How to merge/concat two arrays together in JS?

Point all requests to one PHP file

What is camel case?

How to see all of the options for an artisan command?