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March 9, 2020 16:56
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JS WTF?! Unsuspecting Regex range selector captures numbers and certain punctuation? Assuming it's due to a unicode/ascii coercion in the JS interpreter. Works in Node 5+ and in Browser console.
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| "testing, waffles 1234567+=-_^@,./;:[]\/".replace(/[+-_]/g, '') | |
| // > "testing waffles " |
UPDATE: it's intended behavior as a range selector... [+-_] is a unicode coercion that matches all characters in that range.
Lesson learned: be explicit about your range capture values people, escape your hyphens \- if you want to capture hyphens :P
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It has to do with the hyphen in the range
[+-_], so yes, ASCII coercion in the JS interpreter REGEX engine appears to be the case here.