How to create N length of array
Daisho Komiyama edited this page Jul 6, 2022
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Say we want an array of numbers.
Array.from(Array(10).keys()) // [0,1,2,3,4,5,6,7,8,9]
Array.from({ length: 10 }, (_, i) => i) // [0,1,2,3,4,5,6,7,8,9]
[...Array(10).keys()] // [0,1,2,3,4,5,6,7,8,9]Say we want an array with the same value.
Array(10).fill('a') // ['a','a','a','a','a','a','a','a','a','a']