- Welcome to Geeksww.com
How to find if argument is numeric or not, using Javascript
Use the code below:
// checks to see whether the input is a numeric string or not also includes "." and "-" function IsNumeric(strString) { var strValidChars = "0123456789.-"; // valid characters for a numeric string var strChar; var result = true; var i = 0 if (strString.length == 0) return false; // check to see if strString consists of valid characters listed in strValidChars while (i < strString.length && result == true) { strChar = strString.charAt(i); if (strValidChars.indexOf(strChar) == -1) return false; i++; } return result; }
Did this tutorial help a little? How about buy me a cup of coffee?
Please feel free to use the comments form below if you have any questions or need more explanation on anything. I do not guarantee a response.
IMPORTANT: You must thoroughy test any instructions on a production-like test environment first before trying anything on production systems. And, make sure it is tested for security, privacy, and safety. See our terms here.
tags cloud
popular searches
free download for mysql database server 5.1.5, bison, gearman, source code, php, install cairo, laptop, mysql, java, linux, install mysql, mysql initialization, mysql mysql, tools, ubuntu
Similar Tutorials:
- How to write a function that generates random string in Javascript?
- Sleep/Pause for specified number of seconds
- How to execute a function at regular intervals using Javascript
- Trim whitespaces from both ends of a string, using Javascript
- Removing Whitespaces from Beginning of a String (Left Trim), using Javascript
Tutorials in 'Web Development > Javascript' (more):
- How to write a function that generates random string in Javascript?
- Which frontend framework should i learn?
- Bundle, validate, compress javascript files
- How to execute a function at regular intervals using Javascript
- Go to Top of the Page Using Javascript
Comments (write a comment):
0 comments so far. Be the first one to leave a comment on this article.
leave a comment