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How to easily create empty matrices with JavaScript?

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Sometimes, we want to easily create empty matrices with JavaScript.

In this article, we’ll look at how to easily create empty matrices with JavaScript.

How to easily create empty matrices with JavaScript?

To easily create empty matrices with JavaScript, we can use the array fill method.

For instance, we write

const matrix = Array(9).fill(Array(9));

to create an array with length 9 with the Array function.

Then we call fill with another empty array with 9 empty entries.

As a result, we get a 9×9 2d array returned.

Conclusion

To easily create empty matrices with JavaScript, we can use the array fill method.

By John Au-Yeung

Web developer specializing in React, Vue, and front end development.

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