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delay

Delay a promise a specified amount of time

  • 4.4.1
  • Source
  • npm
  • Socket score

Version published
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3.9M
increased by0.24%
Maintainers
2
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What is delay?

The 'delay' npm package is a simple utility that allows you to pause the execution of an asynchronous function for a specified amount of time. It is primarily used to introduce delays in promise chains or async functions, making it useful for testing, rate limiting, or creating time-based behavior in applications.

What are delay's main functionalities?

Basic Delay

This feature allows you to pause the execution of code within an async function for a specified duration (in milliseconds). In this example, the code waits for 2 seconds before printing '2 seconds later'.

const delay = require('delay');

(async () => {
  console.log('Waiting...');
  await delay(2000);
  console.log('2 seconds later');
})();

Delay with Value

This feature enables you to resolve a promise with a specific value after a delay. Here, the promise resolves with the string 'Hello after 1.5 seconds' after waiting for 1.5 seconds.

const delay = require('delay');

(async () => {
  const result = await delay(1500, {value: 'Hello after 1.5 seconds'});
  console.log(result);
})();

Delay with Options

This feature supports passing an options object that can include an AbortSignal to cancel the delay. If the abort signal is triggered, the delay is cancelled, and the subsequent code may not execute.

const delay = require('delay');

(async () => {
  await delay(1000, {signal: someAbortSignal});
  console.log('This will not run if the abort signal is triggered');
})();

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Package last updated on 30 Jan 2021

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