/^[a-z0-9_-]{3,16}$/ Eugene Kudashev
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- Education
Regular expressions can be extremely useful whenever you need to make the computer do something with text.
For example, when you need to check that what user typed is a real email, or automatically replace every uppercase letter F into a lowercase letter F.
But as useful as they are, regular expressions can be extremely confusing and intimidating for beginners.
In this podcast I’m going to explain regular expressions in a simple and accessible way, and help you start using them in your day-to-day work.
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/^([a-zA-Z0-9._%-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,6})*$/
In this episode I’m going to show you how to check that a given string is indeed a real email. This could be useful for a sign up form in your app, or an order checkout page in your online shop.