# Limit number between a range

```
const MIN = 1;
const MAX = 20;
Math.min(Math.max(input, MIN), MAX)
```

The way this works is, assuming the input is larger than the expected range.

`Math.max()`

will pick the the larger value, then pass it on to `Math.min()`

which then picks `MAX`

as the smaller value.

The concept is reversed when the input is smaller.

I also just learnt that this concept is called clamping.