ignoreCase是正則表達式對象的只讀布爾屬性。它指定是否一個特定的正則表達式執行不區分大小寫的匹配。，它與“i”屬性創建。
語法
RegExpObject.ignoreCase
下面是參數的詳細信息：
返回值:
例子：
<html>
<head>
<title>JavaScript RegExp ignoreCase Property</title>
</head>
<body>
<script type="text/javascript">
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>
</html>
這將產生以下結果：
Test1 - ignoreCase property is not set Test2 - ignoreCase property is set