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30-seconds-of-code/snippets/mapNumRange.md
30secondsofcode ffc7d2aeb8 Travis build: 1019
2019-02-25 06:42:36 +00:00

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### mapNumRange
Maps a number from one range to another range.
Returns `num` mapped between `outMin`-`outMax` from `inMin`-`inMax`.
```js
const mapNumRange = (num, inMin, inMax, outMin, outMax) =>
((num - inMin) * (outMax - outMin)) / (inMax - inMin) + outMin;
```
```js
mapNumRange(5, 0, 10, 0, 100); // 50
```