Array.apply(null,{length:10}).map(()=>1)
Array.from({length:10}).map(()=>1)
Array.from(arrayLike, x => x * x)
Array.from([1, 2, 3], (x) => x * x)
Array.apply(null,{length:10}).map(()=>1)
Array.from({length:10}).map(()=>1)
Array.from(arrayLike, x => x * x)
Array.from([1, 2, 3], (x) => x * x)
本文标题：数组快速生成、赋值的方法
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