Sometimes, we want to pass all the values from an array into a function as arguments with JavaScript.

In this article, we’ll look at how to pass all the values from an array into a function as arguments with JavaScript.

How to pass all the values from an array into a function as arguments with JavaScript?

To pass all the values from an array into a function as arguments with JavaScript, we can use the spread and rest operators.

For instance, we write:

const f = (...args) => {
  console.log(args)
}

const a = ['a', 'b', 'c', 'd']
f(...a)

to define the function f that uses the rest operator in the arguments to accept an unlimited number of arguments.

args is an array with all the arguments.

Then we call f with array a‘s entries spread as the arguments of f with the spread operator.

Therefore, args is ["a", "b", "c", "d"].

Conclusion

To pass all the values from an array into a function as arguments with JavaScript, we can use the spread and rest operators.