W3Schools.com

JavaScript RegExp i Modifier

RegExp Object Reference JavaScript RegExp Object

Definition and Usage

The i modifier is used to perform case-insensitive matching.

Syntax

new RegExp("regexp","i")

or simply:

/regexp/i


Browser Support

Internet Explorer Firefox Opera Google Chrome Safari

The i modifier is supported in all major browsers.


Example

Example

Do a case-insensitive search for "w3schools" in a string:

var str="Visit W3Schools";
var patt1=/w3schools/i;

The marked text below shows where the expression gets a match:

Visit W3Schools

Try it yourself »


RegExp Object Reference JavaScript RegExp Object
WEB HOSTING
Best Web Hosting
PHP MySQL Hosting
Best Hosting Coupons
UK Reseller Hosting
Cloud Hosting
Top Web Hosting
$7.95/mo SEO Hosting
Premium Website Design
WEB BUILDING
Download XML Editor
FREE Website BUILDER
Free Website Templates Free CSS Templates
Make Your Own Website
W3SCHOOLS EXAMS
Get Certified in:
HTML, CSS, JavaScript, XML, PHP, and ASP
W3SCHOOLS BOOKS
New Books:
HTML, CSS
JavaScript, and Ajax
STATISTICS
Browser Statistics
Browser OS
Browser Display
SHARE THIS PAGE