Regex Pal
Test regular expressions syntax quickly
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Hunter's comment
Regex is short form of regular expressions. They are special strings that represent a pattern that is to be matched in a search operation. Simply put, it matches from the beginning to end, any character that appears zero or more times.
This online web tool allows execution of RegEx so that you can test your syntax quickly.
The amazing this about this web tool is that it saves what it regard as ‘Top Regular Expression’ of feeds made by other users. With this, you can discover some new tricks.
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