JavaScript RegExp ignoreCase

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Example

let pattern = /W3S/i;
let result = pattern.ignoreCase;
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Description

The ignoreCase property specifies whether or not the "i" modifier is set.

This property returns true if the "i" modifier is set, otherwise it returns false.

Browser Support

ignoreCase is an ECMAScript1 (ES1) feature.

ES1 (JavaScript 1997) is fully supported in all browsers:

Chrome Edge Firefox Safari Opera IE
Yes Yes Yes Yes Yes Yes

Syntax

RegExpObject.ignoreCase

Return Value

Type Description
Boolean Returns true if the "i" modifier is set, false otherwise
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