大家好,我有这个任务:我有一个数组[4,7,3,6,9],我必须制作一个像这样的数组:
Hello, everybody, I have this task: I have an array [4,7,3,6,9] and I have to make an array like this:
[4,7,3,6,9] [9,4,7,3,6] [6,9,4,7,3] [3,6,9,4,7] [7,3,6,9,4]即使我向数组添加新项目,我也必须编写一个数组旋转的程序.我是JS的新手,大约1周左右,这是我目前的尝试:
I have to make a program where array is rotating even if I add a new item to an array it should change accordingly. I am total newbie at JS, 1 week or so, here is my current try:
var numbers = [4, 7, 3, 6, 9]; console.log(numbers); numbers[0] = 9; numbers[1] = 4; numbers[2] = 7; numbers[3] = 3; numbers[4] = 6; console.log(numbers); numbers[0] = 6; numbers[1] = 9; numbers[2] = 4; numbers[3] = 7; numbers[4] = 3; console.log(numbers); numbers[0] = 3; numbers[1] = 6; numbers[2] = 9; numbers[3] = 4; numbers[4] = 7; console.log(numbers); numbers[0] = 7; numbers[1] = 3; numbers[2] = 6; numbers[3] = 9; numbers[4] = 4; console.log(numbers);在我看来,我也有.push,.splice等.我不知道为什么,但是我真的觉得javascript不适合我的大脑,哈哈:D
Also in my mind I have .push, .splice, etc. I dont know why but i really feel that javascript is not for my brain, haha :D
推荐答案您可以弹出该值并将其取消移位.
You could pop the value and unshift it.
var array = [4, 7, 3, 6, 9], i = array.length; while (i--) { console.log(array.join(' ')); array.unshift(array.pop()); } console.log(array.join(' '));