[API reference](https://evolu.dev/docs/api-reference) › [@evolu/common](https://evolu.dev/docs/api-reference/common) › [Number](https://evolu.dev/docs/api-reference/common/Number) › isBetween

```ts
function isBetween(min: number, max: number): Predicate<number>;
```

Defined in: [packages/common/src/Number.ts:43](https://github.com/evoluhq/evolu/blob/e7144e2bbe9069362b62dec1b64a8aa922b8f1b0/packages/common/src/Number.ts#L43)

Creates a predicate that checks if a number is within a range, inclusive.

### Example

```ts
const isBetween10And20 = isBetween(10, 20);
console.log(isBetween10And20(15)); // true
console.log(isBetween10And20(25)); // false
```