当前位置:网站首页>js封装数组反转的方法--冯浩的博客
js封装数组反转的方法--冯浩的博客
2022-07-06 09:29:00 【冯浩(grow up)】
思路:我们使用两个循环 分别遍历出前一个元素和后一个元素,
然后定义一个空的变量,进行位置调换
function reversal(arr){
for(var i =0 ;i<arr.length;i++){
for(var j =i+1;j<arr.length;j++){
var temp ;
temp = arr[i];
arr[i]=arr[j];
arr[j]=temp;
}
}
}
var arr = ["a","b","c","d"];
console.log(arr);
reversal(arr);
console.log(arr);
边栏推荐
- 图图的学习笔记-进程
- 875. 爱吃香蕉的珂珂 - 力扣(LeetCode)
- 7-1 understand everything (20 points)
- Oneforall installation and use
- Differential (one-dimensional, two-dimensional, three-dimensional) Blue Bridge Cup three body attack
- 409. Longest palindrome
- (POJ - 3685) matrix (two sets and two parts)
- Bidirectional linked list - all operations
- Sword finger offer II 019 Delete at most one character to get a palindrome
- Codeforces Round #799 (Div. 4)A~H
猜你喜欢
QT按钮点击切换QLineEdit焦点(含代码)
Sword finger offer II 019 Delete at most one character to get a palindrome
Pull branch failed, fatal: 'origin/xxx' is not a commit and a branch 'xxx' cannot be created from it
QT style settings of qcobobox controls (rounded corners, drop-down boxes, up expansion, editable, internal layout, etc.)
Quick to typescript Guide
C language learning notes
Installation and configuration of MariaDB
Maximum product (greedy)
1903. Maximum odd number in string
QT implementation fillet window
随机推荐
Codeforces Round #801 (Div. 2)A~C
Codeforces Round #800 (Div. 2)AC
Is the sanic asynchronous framework really so strong? Find truth in practice
C basic grammar
Codeforces Round #802(Div. 2)A~D
VMware Tools和open-vm-tools的安装与使用:解决虚拟机不全屏和无法传输文件的问题
Acwing: Game 58 of the week
Installation and configuration of MariaDB
605. Planting flowers
Codeforces Round #799 (Div. 4)A~H
Educational Codeforces Round 130 (Rated for Div. 2)A~C
Data storage in memory & loading into memory to make the program run
Problem - 1646C. Factorials and Powers of Two - Codeforces
Pytorch extract skeleton (differentiable)
807. Maintain the urban skyline
Opencv learning log 26 -- detect circular holes and mark them
< li> dot style list style type
Codeforces round 797 (Div. 3) no f
QT realizes window topping, topping state switching, and multi window topping priority relationship
双向链表—全部操作