Multiline regular expression is a read-only boolean property of the object. It specifies whether a particular regular expression performs multi-line matching, that is, whether or not it was created with the "m" attribute.
Grammar
RegExpObject.multiline
Here are the details of the parameters:
Return value:
Example:
<html>
<head>
<title>JavaScript RegExp multiline Property</title>
</head>
<body>
<script type="text/javascript">
var re = new RegExp( "string" );
if ( re.multiline ){
document.write("Test1-multiline property is set");
}else{
document.write("Test1-multiline property is not set");
}
re = new RegExp( "string", "m" );
if ( re.multiline ){
document.write("<br/>Test2-multiline property is set");
}else{
document.write("<br/>Test2-multiline property is not set");
}
</script>
</body>
</html>
This will produce the following results:
Test1 - multiline property is not set Test2 - multiline property is set
![[Web front-end] Node.js quick start](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
