JavaScript - call function with array of arguments

In this article, we would like to show you how in JavaScript call a function that takes multiple arguments when we have arguments in an array.

Below example presents printLog arrow function which accepts three arguments (a, b, c) and displays them in the console.

When we have an array and we want to pass it into a function call we can do it in two ways:

• by accessing array items manually printLog(array[0], array[1], array[2]),
• using spread syntax (...): printLog(...array) - the article is focused on that approach.

Practical example:

// ONLINE-RUNNER:browser;

const printLog = (a, b, c) => {
    console.log(a);
    console.log(b);
    console.log(c);
};

const args = ['a', 'b', 'c'];
printLog(...args);

Output:

a
b
c