Contents

class FlattenArray {
    // tslint:disable-next-line: no-any
    static flatten(arr: any[]): number[] {
        return arr
            .reduce((acc, el) =>
                Array.isArray(el)
                    ? acc.concat(this.flatten(el))
                    : acc.concat(el),
                [])
            .filter((el: number) => el !== null && el !== undefined)
    }
}

export default FlattenArray

Version data entries

63 entries across 63 versions & 1 rubygems

Version	Path
trackler-2.2.1.180	tracks/typescript/exercises/flatten-array/flatten-array.example.ts
trackler-2.2.1.179	tracks/typescript/exercises/flatten-array/flatten-array.example.ts
trackler-2.2.1.178	tracks/typescript/exercises/flatten-array/flatten-array.example.ts
trackler-2.2.1.177	tracks/typescript/exercises/flatten-array/flatten-array.example.ts
trackler-2.2.1.176	tracks/typescript/exercises/flatten-array/flatten-array.example.ts
trackler-2.2.1.175	tracks/typescript/exercises/flatten-array/flatten-array.example.ts
trackler-2.2.1.174	tracks/typescript/exercises/flatten-array/flatten-array.example.ts
trackler-2.2.1.173	tracks/typescript/exercises/flatten-array/flatten-array.example.ts
trackler-2.2.1.172	tracks/typescript/exercises/flatten-array/flatten-array.example.ts
trackler-2.2.1.171	tracks/typescript/exercises/flatten-array/flatten-array.example.ts
trackler-2.2.1.170	tracks/typescript/exercises/flatten-array/flatten-array.example.ts
trackler-2.2.1.169	tracks/typescript/exercises/flatten-array/flatten-array.example.ts
trackler-2.2.1.167	tracks/typescript/exercises/flatten-array/flatten-array.example.ts
trackler-2.2.1.166	tracks/typescript/exercises/flatten-array/flatten-array.example.ts
trackler-2.2.1.165	tracks/typescript/exercises/flatten-array/flatten-array.example.ts
trackler-2.2.1.164	tracks/typescript/exercises/flatten-array/flatten-array.example.ts
trackler-2.2.1.163	tracks/typescript/exercises/flatten-array/flatten-array.example.ts
trackler-2.2.1.162	tracks/typescript/exercises/flatten-array/flatten-array.example.ts
trackler-2.2.1.161	tracks/typescript/exercises/flatten-array/flatten-array.example.ts
trackler-2.2.1.160	tracks/typescript/exercises/flatten-array/flatten-array.example.ts