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What is an example of a regular expression?

In: Computer Programming [Edit categories]

Answer:

A Perl regular expression that is meant to check if a string has only letters, underscores, hyphens, and numbers would look something like this:

/^[A-Za-z0-9_-]+/$

However, regular expressions from different language are formed differently - this example is just one of the many forms of regular expressions.

First answer by Twiyp. Last edit by Twiyp. Contributor trust: 190 [recommend contributor ]. Question popularity: 2 [recommend question].

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