Working with regular expressions I’m also going to cover how to work with regular expressions in JavaScript, though the concepts learned here apply to other languages as well.

The String.split methods can be very convenient for easily splitting a provided String based on a provided regular expression String . The only trick is figuring out a regular expression token to ...

I'm trying to write a regular expression for a javascript function. I basically want to test the entire string to make sure the string only has alpha numberic characters and certain latin ...

The regular expressions /\s*,/ and /[\s\u200c]*$/ both give the engine license to keep checking whitespace characters as long as they are present and not followed by a comma or the end of the line, ...

What is a Regular Expression? A regular expression (RegExp) is a sequence of characters that defines a search pattern, used for text search and replace operations.

Regular expressions are patterns that provide a powerful way to search and replace in text. In JavaScript, they are available via the RegExp object, as well as being integrated in methods of strings.

Working with regular expressions I’m also going to cover how to work with regular expressions in JavaScript, though the concepts learned here apply to other languages as well.