Whether a string contains only numerical data

   


<html>
  <head>
    <title>Whether a string contains only numerical data</title>
    <script type="text/javascript">
        var numericalString = "3.14159265";
        var characterString = "3 point 1";
        var pattern = /^-?\d+(\.\d+)?$/;
        
        var a = pattern.test(numericalString);
        var b = pattern.test(characterString);
        
        document.write(a + "<BR>" + b);    
    </script>
  </head>
  <body>
  </body>
</html>

1.	Searching and Replacing Substrings
2.	Regular Expression Tester
3.	The Regular Expression Tester
4.	Regular Expression Match Workshop
5.	Regular Expressions: Looking for a Match
6.	Regular Expressions: Extracting Data from a Match
7.	Regular Expressions: Replacing Strings via Regular Expressions
8.	check Date format
9.	Split comma number string
10.	Use regular expression to validate url
11.	String match pattern: (.*)
12.	Whether a string is a valid phone number
13.	String replace with regular expression
14.	Finding a substring within a string
15.	Validate an email
16.	Using regular expressions to validate an email
17.	Using regular expression (callback function)
18.	Split a string array and get token
19.	Trim a string with regular expression from both sides
20.	The Backslash in RegExp
21.	Regular Expression Switch
22.	Try your regular expression here

Whether a string contains only numerical data : Regular Expressions « Development « JavaScript DHTML

Related examples in the same category