HTML5 input pattern search for quote

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The HTML5 @pattern attribute regex is based on JavaScript regex, so you can use hexadecimal notation or unicode notation for that char as you would in JavaScript:

" = \x22 OR \u0022
' = \x27 OR \u0027

So that you can easily use

pattern="[^'\x22]+"

TADA! No JavaScript libraries involved! 😉

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