Throttle

Create a throttled function that limits the execution rate to at most once per specified time interval.

Code

Boilerplates

const throttle = (fn, ms) => {
  let inThrottle;
  return (...args) => {
    if (!inThrottle) {
      fn(...args);
      inThrottle = true;
      setTimeout(() => inThrottle = false, ms);
    }
  };
};

const log = throttle(() => console.log('called'), 100);
log();
return 'throttled';

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More JavaScript Snippets

Debounce

Create a debounced function that delays execution until after a specified wait period has elapsed since the last call.

Memoize

Cache function results to avoid redundant calculations and improve performance for expensive operations.

Once

Create a function that can only be called once, returning the cached result for subsequent invocations.

Parallel with Limit

Run promises in parallel with a concurrency limit to control resource usage and prevent overwhelming external services.

Promise.allSettled

Wait for all promises to settle, whether they resolve or reject.

Promise.any

Return the result of the first promise that resolves successfully.