mobile typing isn't scored — practice only

function debounce(fn, ms) {

JavaScript · general · type the snippet below to practice

wpm0

acc100%

time–

def fib(n): a, b = 0, 1 for _ in range(n): a, b = b, a + b return a

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about this snippet

This is the debounce snippet in JavaScript — 8 lines of real JavaScript code that exercises common patterns you'll see in production. DeveloperType scores you on net WPM and accuracy and only counts runs above 95% accuracy on the leaderboard, so practice rewards precision, not speed alone.

view source (8 lines)

function debounce(fn, ms) {
  let t;
  return (...args) => {
    clearTimeout(t);
    t = setTimeout(() => fn(...args), ms);
  };
}

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