Contents

export default class RotationalCipher {
    static rotate(text: string, shiftBy: number) {
        return [...text]
            .map((c) => {
                const isUpper = c.toUpperCase() === c
                const isAlpha = c.match(/[a-z]/i)
                const caseCharCode = (isUpper ? "A" : "a").charCodeAt(0)
                if (isAlpha) {
                    const charCode = c.charCodeAt(0)
                    return String.fromCharCode(
                        (charCode - caseCharCode + shiftBy) % 26 + caseCharCode
                    )
                } else {
                    return c
                }
            })
            .join("")
    }
}

Version data entries

133 entries across 133 versions & 1 rubygems

Version	Path
trackler-2.2.1.139	tracks/typescript/exercises/rotational-cipher/rotational-cipher.example.ts
trackler-2.2.1.138	tracks/typescript/exercises/rotational-cipher/rotational-cipher.example.ts
trackler-2.2.1.137	tracks/typescript/exercises/rotational-cipher/rotational-cipher.example.ts
trackler-2.2.1.136	tracks/typescript/exercises/rotational-cipher/rotational-cipher.example.ts
trackler-2.2.1.135	tracks/typescript/exercises/rotational-cipher/rotational-cipher.example.ts
trackler-2.2.1.134	tracks/typescript/exercises/rotational-cipher/rotational-cipher.example.ts
trackler-2.2.1.133	tracks/typescript/exercises/rotational-cipher/rotational-cipher.example.ts
trackler-2.2.1.132	tracks/typescript/exercises/rotational-cipher/rotational-cipher.example.ts
trackler-2.2.1.131	tracks/typescript/exercises/rotational-cipher/rotational-cipher.example.ts
trackler-2.2.1.130	tracks/typescript/exercises/rotational-cipher/rotational-cipher.example.ts
trackler-2.2.1.129	tracks/typescript/exercises/rotational-cipher/rotational-cipher.example.ts
trackler-2.2.1.128	tracks/typescript/exercises/rotational-cipher/rotational-cipher.example.ts
trackler-2.2.1.127	tracks/typescript/exercises/rotational-cipher/rotational-cipher.example.ts
trackler-2.2.1.126	tracks/typescript/exercises/rotational-cipher/rotational-cipher.example.ts
trackler-2.2.1.125	tracks/typescript/exercises/rotational-cipher/rotational-cipher.example.ts
trackler-2.2.1.124	tracks/typescript/exercises/rotational-cipher/rotational-cipher.example.ts
trackler-2.2.1.123	tracks/typescript/exercises/rotational-cipher/rotational-cipher.example.ts
trackler-2.2.1.122	tracks/typescript/exercises/rotational-cipher/rotational-cipher.example.ts
trackler-2.2.1.121	tracks/typescript/exercises/rotational-cipher/rotational-cipher.example.ts
trackler-2.2.1.120	tracks/typescript/exercises/rotational-cipher/rotational-cipher.example.ts