Here is another method from my String utility class. This method uses a regular expression to check if a String is a numeric value. Look at the code, then read through the explanation that follows
I’ve written about Java regular expression to validate email addresses before. Today I am sharing another Java regex to validate Gmail address. It is quite simple and self-explanatory.
Here is a simple Javascript function to validate a date in US format.
My earlier post on how to validate email address, SSN and phone number validation using Java regex still attracts a lot of visitors. Today I realized that another piece of data that many programmers need to validate is the date. Many Java applications have to process input date values, so I thought it will be […]
My post about Java regular expression gets a lot of hits daily. Someone commented that the regular expression I included in that post does not block certain invalid email addresses. So I updated the Java regular expression to validate email address. I am pretty sure that the following Java regular expression will validate any email […]
Image credit: aussiegall Continuing with our JavaScript regular expression series today we will discuss JavaScript regular expression to validate U.S phone numbers. Previously we talked about validating email, Social Security number, and zip code using JS regex. I’ll show you how to use regular JavaScript expressions to validate U.S. phone numbers in today’s post. Although […]
Continuing with my series of JavaScript regular expression today we will see how easy it is to validate zip code using regular expression in JavaScript. Previously we talked about validating email and Social Security number using JS regex. In today’s post, I’ll show you how to use JavaScript regular expression to validate zip code. Let […]
Regular Expressions offer a concise and powerful search-and-replace mechanism. They are patterns of characters used to perform a search, extract or replace operations on the given text. Regular expressions can also be used to validate that the input conforms to a given format. For example, we can use Regular Expression to check whether the user […]