Javascript lookaheads and lookbehinds

added by JavaScript Kicks
8/29/2018 8:28:01 AM

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Regular expressions (also called regex) are patterns used to match character combinations in strings. They help us work with strings in a very performant way. By formulating regex with a special syntax, you can: search text in a string replace substrings in a string extract information from a string If all this is completely new to you, take a look at the mdn web docs for more info.


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