Sometimes, we want to create a fixed length array in JavaScript.
In this article, we’ll look at how to create a fixed length array in JavaScript.
How to create a fixed length array in JavaScript?
To create a fixed length array in JavaScript, we use the Object.seal method.
For instance, we write
const a = new Array(100);
a.fill(1);
Object.seal(a);
to create array a with length 100.
Then we call fill to fill all the slots with 1’s.
Finally, we call Object.seal with a to stop its length from being changed.
Conclusion
To create a fixed length array in JavaScript, we use the Object.seal method.
