ignoreCase is a read-only Boolean property of the RegExp object. It specifies whether a particular regular expression performs case-insensitive matching, i.e. whether it was created with the "i" attribute.
You can try running the following code to see how to use the Ignore Case RegExp property in JavaScript.
<html>
<head>
<title>JavaScript RegExp ignoreCase Property</title>
</head>
<body>
<script>
var re = new RegExp( "string" );
if ( re.ignoreCase ) {
document.write("Test1-ignoreCase property is set");
} else {
document.write("Test1-ignoreCase property is not set");
}
re = new RegExp( "string", "i" );
if ( re.ignoreCase ) {
document.write("<br/>Test2-ignoreCase property is set");
} else {
document.write("<br/>Test2-ignoreCase property is not set");
}
</script>
</body>
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