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JavaScript RegExp i Modifier

RegExp Object Reference JavaScript RegExp Object

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 »


Definition and Usage

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

Tip: Use the ignoreCase property to check whether or not the "i" modifier is set.


Browser Support

Internet Explorer Firefox Opera Google Chrome Safari

The i modifier is supported in all major browsers.


Syntax

new RegExp("regexp","i")

or simply:

/regexp/i


RegExp Object Reference JavaScript RegExp Object

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