# P5JS error showing up

**URL:** https://discourse.processing.org/t/p5js-error-showing-up/27904
**Category:** Coding Questions
**Created:** [February 18, 2021, 11:31am UTC](https://discourse.processing.org/t/p5js-error-showing-up/27904 "2021-02-18T11:31:40Z")
**Posts on this page:** 1
**Showing post:** 5

<div class="post-metadata">

### Author: ![GoToLoop](https://yyz2.discourse-cdn.com/flex036/user_avatar/discourse.processing.org/gotoloop/32/86_2.png) [@GoToLoop](https://discourse.processing.org/u/GoToLoop)
#### Post date: [February 19, 2021, 7:07am UTC](https://discourse.processing.org/t/p5js-error-showing-up/27904/5 "2021-02-19T07:07:03Z")

</div>

> [@How do I make a 2 dimensional array?](https://discourse.processing.org/t/how-do-i-make-a-2-dimensional-array/25934/4):
>
> function createFloatArray2d(rows, cols) { return Array.from({ length: rows }, \_ =\> new Float32Array(cols)); }

```auto
function createArray2d(rows, cols) {
  return Array.from({ length: rows }, _ => Array(cols).fill());
}

```

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