javascript reverse string

var strReversed = str.split(‘‘).reverse().join(‘‘);

function:

function reverse(str){
    return str.split(‘‘).reverse().join(‘‘);
}
时间: 2024-10-30 02:32:35

javascript reverse string的相关文章

[LeetCode] Reverse String II

Given a string and an integer k, you need to reverse the first k characters for every 2k characters counting from the start of the string. If there are less than k characters left, reverse all of them. If there are less than 2k but greater than or eq

[Javascript] How to use JavaScript's String.replace

In JavaScript, you can change the content of a string using the replace method. This method signature is overloaded with a bunch of different ways to do string replacement in JavaScript. This lesson covers the entire API (including an interestingDSL 

[CareerCup] 1.2 Reverse String 翻转字符串

1.2 Implement a function void reverse(char *str) in C or C++ which reverses a null-terminated string. 这道题让我们用C++或C语言来翻转一个字符串,不算一道难题,在之前那道Reverse Words in a String 翻转字符串中的单词中用到了这个函数,跟那道题比起来,这题算简单的了.C语言的版本要比C++的稍微复杂一些,应为string类集成了很多有用的功能,比如得到字符串的长度,用下标

JavaScript中String对象的match()、replace() 配合正则表达式使用

正则表达式由来已久,查找替换功能非常强大,但模板难记复杂. JavaScript中String对象的match().replace()这2个方法都要使用正则表达式的模板.当模板内容与字符串不相匹配时,match()返回null,replace()返回原字符串. 正则表达式的模板对象 //标准写法 regexp = new RegExp(pattern[, flag]); pattern: 模板的用法是关键,也是本章的主要内容. flag: "i"(ignore)."g&quo

javascript 之string.format

function(){ 'use strict'; if(String.prototype.format) return; String.prototype.format = function(args){ var _dict = typeof(args) == 'object' ? args : arguments; return this.replace(/{([^{}]+)}/g,function(s,n){ return _dict[n]===undefined?s:_dict[n];

[LeetCode] 344 Reverse String & 541 Reverse String II

原题地址: 344 Reverse String: https://leetcode.com/problems/reverse-string/description/ 541 Reverse String II: https://leetcode.com/problems/reverse-string-ii/description/ 题目&解法: 1.Reverse String: Write a function that takes a string as input and returns

Nim Game,Reverse String,Sum of Two Integers

下面是今天写的几道题: 292. Nim Game You are playing the following Nim Game with your friend: There is a heap of stones on the table, each time one of you take turns to remove 1 to 3 stones. The one who removes the last stone will be the winner. You will take t

Javascript中String对象的常用方法

charAt(): 返回在指定位置的字符. charCodeAt(): 返回在指定的位置的字符的 Unicode 编码. var s = "Smile forever!"; s.charAt(2); //i s.charCodeAt(2); //105 concat(): 连接字符串,参数可以是多个字符串. var s1 = "Smile forever!"; var s2 = "extend"; s1.concat(s2); //Smile f

javascript 之String

1 String.prototype.format = function(args){ 2 var _dict = typeof(args)=='object'?args:arguments; 3 return this.replace(/\{([^{}]+)\}/g,function(s,k){ 4 return (_dict[k]==undefined)?s:_dict[k]; 5 }); 6 }; string.replace(regexp, replacement) 参数: regexp