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30-seconds-of-code/snippets/initialize2DArray.md
2017-12-19 16:50:36 -05:00

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### initialize2DArray
Initializes an 2D array of given width and height and value.
Use `Array.map()` to generate h rows where each is a new array of size w initialize with value. If value is not provided, default to null.
```js
const initialize2DArray = (w, h, val = null) =>
Array(h).fill().map(() => Array(w).fill(val));
// initializeArrayWithRange(2, 2, 0) -> [[0,0],
// [0,0]]
```