JavaScript Regex Cheat Sheet

Successfully working with regular expressions requires you to know what each special character, flag and method does. This is a regular expressions cheat sheet which you can refer to when trying to remember how a method, special character or flag works.Defining a Regular Expression in JavaScriptThere are two ways of defining a regular expression in JavaScript. var rgx = /^(d+)/ — You can use a regular expression literal and enclose the pattern between slashes. This is evaluated at compile time