# unicorn/prefer-math-min-max

> Require `Math.min()` and `Math.max()` instead of a ternary that picks the smaller or larger value

To read `size > 100 ? 100 : size`, you have to work out which way the comparison goes and which branch wins. `Math.min(size, 100)` says it by name.

The rule only reports a variable compared with a number, such as `100` or `-1`. Two variables could hold strings, dates or bigints, and `Math.min()` would turn those into numbers or throw.

## Configure

Off by default. To turn it on:

```toml bunfig.toml
[lint.rules]
"unicorn/prefer-math-min-max" = "error" # or "warn"
```

## Examples

Reported:

```js
const width = size > 100 ? 100 : size;
const volume = level < 0 ? 0 : level;
```

Not reported:

```js
const width = Math.min(size, 100);
const volume = Math.max(level, 0);
```

```js
const latest = first > second ? first : second;
```