Sometimes, we want to initialize a boolean array in JavaScript.

In this article, we’ll look at how to initialize a boolean array in JavaScript.

How to initialize a boolean array in JavaScript?

To initialize a boolean array in JavaScript, we can use the array fill method.

For instance, we write:

const arr = new Array(10).fill(false);
console.log(arr)

to create the array with Array with length 10.

Then we call fill with false to fill all 10 slots with false.

Therefore, arr is [false, false, false, false, false, false, false, false, false, false].

Conclusion

To initialize a boolean array in JavaScript, we can use the array fill method.