Regular expression for validating name in java

regular expression for validating name in java-56
Recently i have posted how to validate email address in javascript, how to validate mobile number and email address in jquery and not i will show you how to validate mobile number using simple javascript or using regular expression in javascript.below is the code for validating mobile number with enter only numeric, length must be 10 digits and restrict user to entering illegal characters.bana*na // Matches "banna", "banana", and "banaaana", // but not "bnana".

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Some of these can be downright confusing and difficult to remember, so if you intend to make extensive use of them you may wish to find a good reference for yourself.

Fortunately, Java Script supports the very same regular expression syntax as Perl, and there are lots of Websites out there documenting Perl regular expressions. There’s also the documentation provided in the official Perl manual.

This article was updated on 2nd of June, 2016 to add Code Pen demos, update the code examples, rewrite the conclusion, and fix formatting issues.

If you’ve ever programmed in Perl, or have had to work as a Unix system administrator, then you probably already have more than a passing familiarity with regular expressions.

Both of these are cryptic in places, so you may want to refer to both of them at once.

Let’s work our way through a few examples to learn the basic regular expression syntax. " Java Script$ // Matches "I love Java Script", // not "Java Script is great!But even if Perl looks like spaghetti to you and you feel that no mere mortal is equipped to manage a Unix system, the fact that Java Script includes support for Perl-style regular expressions is good news… In this article, I’ll start out by explaining what, exactly, regular expressions are and what they can do for you.I’ll then present an overview of the most common features of regular expressions (which the Perl aficionados in the audience can safely skip over).Using regular expressions in Java Script is so easy that it’s a wonder more people don’t know that it can be done.You can create a regular expression in Java Script as follows: Where regexp is the regular expression code, as described above.Regular expressions use special (and, at first, somewhat confusing) codes to detect patterns in strings of text.For example, if you’re presenting your visitors with an HTML form to enter their details, you might have one field for their phone number.There are more special codes and syntax tricks for regular expressions, all of which should be covered in any complete reference.For now, we have more than enough for our purposes.In our phone number example, we could write a simple regular expression and use it to check – in one quick step – whether or not any given string is a properly formatted phone number.We’ll explore this example a little further, once we’ve taken care of a few technical details.


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