basic email validation

Just a little regex for the tailwind css color classes, It could be improved.

When you want to parse a litteral math expression with power in and you want e^x to be e**x Use this regex!

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Skip match process when S exist, or remove optional left most target T, capture left and right part of T. Use case: if N is not exist, modify/change T to N, or create N. If any create or modify write operated, appending output N to right using subsitution "$1$2N".

Captures format specifiers commonly used in logging and console messages, as defined in the current whatwg/console spec: %s: Formats the value as a string %i: Formats the value as an integer %d: Formats the value as an integer %f: Formats the value as a floating point value...

Captures format specifiers commonly used in logging and console messages, as defined in the current whatwg/console spec: %s: Formats the value as a string %i: Formats the value as an integer %d: Formats the value as an integer %f: Formats the value as a floating point value...

Recently, I was looking for a regular expression to validate a file path and extension. I found several of them on Google, but none of them fit my requirement. So I decided to put together a version that suits my need. Here is the Regular Expression to validate the file path and extension and it is ...

Http response header User-Agent

Http response header User-Agent