Just wondering what does [^a-z0-9] mean in regex?
I looked around this site and only find [a-z0-9], so what does the ^ symbol mean?
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tickwave
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2It means match a character that is not in range of `a-z` and `0-9` – anubhava Feb 20 '18 at 11:07
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See https://stackoverflow.com/questions/20801127/disable-white-space-in-text/20802463#20802463 – Wiktor Stribiżew Feb 20 '18 at 11:09