/ Reg (exp) {2} lained / Demystifying Regular Expressions
summary
Starts with live demos on regexplained.com and uses browser console, CSS conic gradients for a timer, and Twitter-driven regex challenges that show a ~25 second API delay and dozens of live submissions. Explains S flag and Unicode property escapes as stage 3 proposals with Chrome/Safari support, demonstrates backreferences to match matching quotes, shows lookbehind as experimental but implemented behind flags, and warns about catastrophic backtracking that turns some patterns from instant to many seconds.
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chapters (4)
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