JavaScript program to convert a set to array:
Set holds unique values. We can’t have more than one same value in a JavaScript set. But in an array, we can have an item more than one time. Sometimes, we might need to convert a set to an array. In this post, I will show you how to convert a set to an array in JavaScript.
Using Array.from():
Array.from is a static method that creates a new instance of an array with the passed iterable object. If we pass a set, it convers that set to an array.
let set = new Set();
set.add(1);
set.add(2);
set.add(3);
set.add(4);
let convertedArray = Array.from(set);
console.log(convertedArray);It will print:
[ 1, 2, 3, 4 ]Using Spread syntax:
Using spread syntax, we can convert a set to an array:
let set = new Set();
set.add(1);
set.add(2);
set.add(3);
set.add(4);
let convertedArray = [...set];
console.log(convertedArray);It prints the same output.
Using forEach:
We can always iterate throught the set items and insert them to an empty array. This is a not a recommended method to use.
let set = new Set();
set.add(1);
set.add(2);
set.add(3);
set.add(4);
let convertedArray = [];
set.forEach(v => convertedArray.push(v));
console.log(convertedArray);The output is same.
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