1.

What is onclick event in JavaScript?

Answer»

Let’s say the following is our string with numbers and special characters: 

var strNum = "DEMO989#@#@"; 

The following RegExp is used to get a non-digits: 

\D/g

Above we have set the g flag to PERFORM global match.

The following is the code:

<HTML>    <head>       <title>Regular Expression in JAVASCRIPT</title>    </head>    <body>       <SCRIPT>         var strNum = "DEMO989#@#@";         var regExp = /\D/g;         document.write("String with numbers and characters = "+strNum)         var res = strNum.match(regExp);         document.write("<br>GETTING Non-Digits = "+res);       </script>    </body> </html>

The output displays non-digits:

String with numbers and characters = DEMO989#@#@ Getting Non-Digits = D,E,M,O,#,@,#,@


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