Function filter

filter<T>(condition: ((x: T) => boolean)): ((arr: readonly T[]) => T[])
Example
```
import * as A from "flurp/array";
import * as N from "flurp/number";

const justPositive = A.filter(N.isPositive);
justPositive([3, -6, 2]);     // [3, 2]
```
Type Parameters
- T
Parameters
- condition: ((x: T) => boolean)
  - - (x: T): boolean
    - Parameters
      
      x: T
      
      Returns boolean
Returns ((arr: readonly T[]) => T[])
- - (arr: readonly T[]): T[]
  - Parameters
    - arr: readonly T[]
    Returns T[]
- Defined in src/array.ts:407