How can async functions in JavaScript be used with arrays?

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Async functions in JavaScript can be used with arrays in the following ways:

1. Using for loop: Async functions can be used with arrays using for loop to iterate through the array and execute the async function for each element. This can be achieved using the ‘await’ keyword to wait for the async function to complete before moving on to the next iteration of the loop.

Example:

async function myAsyncFunction() {
  const myArray = ['one', 'two', 'three'];
  for (let i = 0; i < myArray.length; i++) {
    await asyncFunction(myArray[i]);
  }
}

1. Using map(): The map() method can be used to apply an async function to each element of an array and return an array of promises. The Promise.all() method can then be used to wait for all the promises to be resolved.

Example:

async function myAsyncFunction() {
  const myArray = ['one', 'two', 'three'];
  const promises = myArray.map(async (element) => {
    await asyncFunction(element);
  });
  await Promise.all(promises);
}

1. Using forEach(): The forEach() method can be used to execute an async function for each element of an array without waiting for the function to complete.

Example:

async function myAsyncFunction() {
  const myArray = ['one', 'two', 'three'];
  myArray.forEach(async (element) => {
    await asyncFunction(element);
  });
}