ignoreCase Redirect 1

Summary

The ignoreCase property indicates whether or not the "i" flag is used with the regular expression. ignoreCase is a read-only property of an individual regular expression instance.

Property attributes of ignoreCase Redirect 1
Writable No
Enumerable No
Configurable No

Description

The value of ignoreCase is a Boolean and true if the "i" flag was used; otherwise, false. The "i" flag indicates that case should be ignored while attempting a match in a string.

You cannot change this property directly.

Examples

Example: Using ignoreCase

var regex = new RegExp("foo", "i")

console.log(regex.ignoreCase) // true

Specifications

Specification Status Comment
ECMAScript 3rd Edition. Implemented in JavaScript 1.2. Standard Initial definition.
JavaScript 1.5: ignoreCase is a property of a RegExp instance, not the RegExp object.
ECMAScript Language Specification 5.1th Edition (ECMA-262) Standard  
ECMAScript Language Specification 6th Edition (ECMA-262) Draft ignoreCase is now a prototype accessor property rather than an instance's own data property.

Browser compatibility

Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari
Basic support (Yes) (Yes) (Yes) (Yes) (Yes)
Feature Android Chrome for Android Firefox Mobile (Gecko) IE Mobile Opera Mobile Safari Mobile
Basic support (Yes) (Yes) (Yes) (Yes) (Yes) (Yes)

See also

Document Tags and Contributors

Last updated by: Sheppy,