How to write a JavaScript RegExp to match an expression?
To match an expression, use the JavaScript match() method. This method is used to retrieve the matches when matching a string against a regular expression. The following is the parameter −
- param − A regular expression object.
If the regular expression does not include the g flag, it returns the same result as regexp.exec(string).
If the regular expression includes the g flag, the method returns an Array containing all the matches.
Example
You can try to run the following code to math an expression using JavaScript Regular Expression −
<html>
<head>
<title>JavaScript String match() Method</title>
</head>
<body>
<script>
var str = "For more information, see Chapter 3.4.5.1";
var re = /(chapter \d+(\.\d)*)/i;
var found = str.match( re );
document.write(found );
</script>
</body>
</html>
Published on 26-Feb-2018 10:55:46
