#Async

7 snippets

• JavaScript Tested

  Sleep / delay with a Promise

  Pause an async function for a number of milliseconds, with optional cancellation through AbortSignal.

• JavaScript Tested

  Run async tasks with a concurrency limit

  Process a large list with at most N promises in flight at once, preserving result order.

• JavaScript Tested

  Retry an async operation with exponential backoff

  Retry a failing promise-returning function with growing, jittered delays and a retry predicate.

• Python Tested

  Retry decorator with exponential backoff

  Re-run a flaky function a limited number of times with growing delays, only for chosen exception types.

• JavaScript Tested

  Fetch every page of a paginated API with an async generator

  Iterate cursor-paginated API results with for await, loading pages lazily and stopping early when needed.

• JavaScript Tested

  fetch with a timeout and error handling

  Abort slow HTTP requests with AbortSignal.timeout and turn non-2xx responses into real errors.

• JavaScript Tested

  Debounce a function

  Delay a function call until the caller has stopped invoking it for a given time, with cancel support.