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pausing a for loop using javascript promises on event fire

Vandana Giri answered on October 14, 2022 Popularity 1/10 Helpfulness 1/10

answer pausing a for loop using javascript promises on event fire

pausing a for loop using javascript promises on event fire

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// This solution is extracted from: https://www.geeksforgeeks.org/how-to-pause-and-play-a-loop-in-javascript-using-event-listeners/
// The below function can pause the flow of execution of javascript program
// Our approach in this program for pausing and playing a loop is same as delaying a loop using Promise, but instead of resolving the Promise after some specific duration, we will resolve Promise by event listeners.
const playBtn = document.getElementById("play");// if user clicks on this button then the execution on loop will be resumed
const pauser = () => {
  return new Promise((resolve, reject) => {
    playBtn.addEventListener("click", () => {
      resolve(true);
    });
  });
};

// How to call pauser function?
// You will need to using async/await syntax to pause the flow of program using pauser
const myLoop = async () => {
  for (let i = 0; i < 5; i++) {
    console.log(i);
    await pauser();
  }
};

Popularity 1/10 Helpfulness 1/10 Language javascript

Source: Grepper

Tags: for-loop javascript using

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Contributed on Oct 14 2022

Vandana Giri

0 Answers Avg Quality 2/10

pausing a for loop using javascript promises on event fire

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