Contents

class RunLengthEncoding {
    static encode(plaintext: string): string {
        return plaintext.replace(/([\w\s])\1*/g, (match) => {
            return match.length > 1 ? match.length + match[0] : match[0]
        })
    }

    static decode(cypher: string): string {
        return cypher.replace(/(\d+)(\w|\s)/g, (_match, repeats, char) => {
            return new Array(+repeats + 1).join(char)
        })
    }
}

export default RunLengthEncoding

Version data entries

66 entries across 66 versions & 1 rubygems

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