4 ms·

first = line.match( /(?:(0|zero)|(1|one) ... (9|nine))/) last = line.match(/.*(?:(0|zero)|(1|one) ... (9|nine))/) indexOfGroupMatched = ([_,

first = line.match( /(?:(0|zero)|(1|one) ... (9|nine))/) last = line.match(/.*(?:(0|zero)|(1|one) ... (9|nine))/) indexOfGroupMatched = ([_, ...groups]) => groups.findIndex(x => x != undefined) num = +[first, last].map(indexOfGroupMatched).join('')

63 3y ago
Oh I understand. That's a good idea. Honestly I only ever use regex for AOC so I never would've thought of using it like that. I'll keep it in mind. Thanks!