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Brian Liotti
Brian Liotti

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Answer: know your Javascript loops

answer re: For-each over an array in JavaScript

Feb 17 '12
7548

TL;DR

  • Your best bets are usually

    • a for-of loop (ES2015+ only; spec | MDN) - simple and async-friendly
    • forEach (ES5+ only; spec | MDN) (or its relatives some and such) - not async-friendly (but see details)
    • a simple old-fashioned for loop - async-friendly
    • (rarely) for-in…

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