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afrijaldz/arrayoflength.js

Created January 28, 2021 11:52
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membuat array berisi index sebanyak panjang array
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arrayoflength.js
// contoh ada array hewan = ["ayam", "bebek", "lele"]
// ingin membuat array yang isinya index dari berapa panjang array hewan
// cara 1
Array.from(Array(hewan.length).keys())
//=> [0, 1, 2]
// cara 2
[...Array(hewan.length).keys()]
//=> [0, 1, 2]
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