Array.from( )


Posted by mijouhsieh on 2023-03-29

Array.from() return 新陣列

Array.from()方法會從類陣列(array-like)可迭代(iterable)物件 建立一個新的 Array 實體。

console.log(Array.from('foo'));
// Expected output: Array ["f", "o", "o"]

console.log(Array.from([1, 2, 3], x => x + x));
// Expected output: Array [2, 4, 6]
const tiles = Array.from(document.querySelectorAll('.tile'))

#iterable-object #array-like #convert to array







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