Js整数数组

这个之前学习过, 可是貌似竟然没有生成blog, 这次要再弄一下了.

参考: https://stackoverflow.com/questions/3746725/how-to-create-an-array-containing-1-n

Array.from(Array(10).keys())
[...Array(10).keys()]
Array.from(Array(5),(x,i)=>i)
Array(5).fill().map((x,i)=>i) //Array(3).fill(4) -> [4,4,4]
Array.from({ length: N }, (_, i) => i+1)



//=> [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
Array.from(Array(10), (x, i) => i + 1)
[...Array(10).keys()].map(x => ++x);
[...Array(N+1).keys()].slice(1);
Array.from(Array(10)).map((e,i)=>i+1)