Faker is a useful JavaScript library for generating dummy data.

For example, faker.random.words(3) generates a string containing three random words. But what if you want to generate an array of random words?

Helper function to the rescue.

function makeArray<T>(length: number, generator: () => T): T[] {
  return Array.from({ length }, generator)


// Array containing 20 single word strings
const simple: string[] = makeArray(20, faker.random.word)

// Array containing up to 20 3-word strings
const fancy: string[] = makeArray(faker.random.number(20), () =>