[英]Add array to another array
I need to add some arrays to another array. 我需要将一些数组添加到另一个数组。
Suppose I have 2 nested loops: 假设我有2个嵌套循环:
arr1 = [];
for (i = 0; i < 3; i++) {
for (j = 0; j < 3; j++) {
arr1.push(i,j)
}
}
I want arr1 to be 我希望arr1是
[[[0],[0]],[[0],[1]],[[0],[2]],[[1],[0]],...]
Instead I just get 相反,我只是得到
[0, 0, 0, 1, 0, 2, 1, 0, 1, 1, 1, 2, 2, 0, 2, 1, 2, 2]
Array.push
appends each argument to the array, so this is expected behavior. Array.push
将每个参数附加到数组,因此这是预期的行为。 To accomplish what you want you should call 要完成您想要的事情,您应该打电话给
arr1.push([[i], [j]]);
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