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    regexr is pretty good as well. ;)

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      Thanks for posting this, it’s really nice. It includes Python as a flavor, which many otherwise cool sites don’t.

      I also really like the live-updated automatic explanation pane - very handy for checking if you’ve said what you meant.

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        Recently, I’ve started to use the Node REPL for quick tests of Regex due to JS' nice RegExp type and functions. (It helps when you’re actually learning JS too)