Questions And Answers

More Tutorials

String replace ignore case in Javascript

js ignore case

var str = "Visit W3Schools!";
var patt1 = /W3S/i;
var res = patt1.ignoreCase

To do a case insensitive string replacement in JavaScript:

// Supported in IE 6-11

const str = 'HELLO HELLO world';
const replaced = str.replace(/hello/gi, 'bye');
console.log(replaced); // 👉️ bye bye world


In this page (written and validated by ) you learned about . What's Next? If you are interested in completing Javascript tutorial, we encourage you simply to start here: Javascript Tutorial.

Incorrect info or code snippet? We take very seriously the accuracy of the information provided on our website. We also make sure to test all snippets and examples provided for each section. If you find any incorrect information, please send us an email about the issue:

Share On:

Mockstacks was launched to help beginners learn programming languages; the site is optimized with no Ads as, Ads might slow down the performance. We also don't track any personal information; we also don't collect any kind of data unless the user provided us a corrected information. Almost all examples have been tested. Tutorials, references, and examples are constantly reviewed to avoid errors, but we cannot warrant full correctness of all content. By using, you agree to have read and accepted our terms of use, cookies and privacy policy.