What is JavaScript validation using Regular Expressions?
The JavaScript Validating user input is the bane of every software developers existence. The developing cross-browser web applications this task becomes even less enjoyable due to the lack of useful intrinsic validation functions in JavaScript. JavaScript 1.2 has incorporated regular expressions. This article I will present a brief tutorial on the basics of regular expressions and then give some examples of how they can be used to simplify data validation. A demonstration page and code library of common validation functions has been included to supplement the examples in the article. Regular Expression: JavaScript regular Expression is the very powerful tool and performing for the patterns matches. the PERL programmers and UNIX shell programmers have enjoyed the benefits of regular expressions for years. Once you are master the pattern language, most validation tasks become trivial. if you perform complex tasks that once required lengthy procedures with just a few lines of code using r
