Function encodeString

Transforms value to be represented using a different set of characters, in a way that can be decoded later with decodeString.

// encode a UUID into a more compact form to include in a URL parameter
const uuid = 'd5942ea9-6520-42ea-9ced-7013285e4085';
const UUID_ALPHABET = `-${NUMERIC_ALPHABET}abcdef`;

const encoded = encodeString(uuid, UUID_ALPHABET, UNRESERVED_ALPHABET);
const decoded = decodeString(encoded, UUID_ALPHABET, UNRESERVED_ALPHABET);

expect(encoded).toBe('5pNPwHKvWJeLh-wMQ6_ohqcAm');
expect(decoded).toBe(uuid);
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