reverseString("c"),这时候传入的 str 长度为 1,所以执行 if 中的部分,返回传入的 str,也就是返回 "c" 回到reverseString("bc") 这一步,此时的 str[0] 为 "b"。由于上一步的返回值是 "c",那么这一步的返回值是 "cb" 回到reverseString("abc"),此时的 str[0] 为 "a"。由于上一步的返回值是...
Use the join() function in JavaScript to concatenate the elements of an array into a string. // <em>Function to reverse string</em> function ReverseString(str) { return str.split('').reverse().join('') } //<em> Function call</em> ReverseString("codedamn"); //Output- nmadedoc...
How to reverse a string in JavaScript is one of the most frequently asked interview questions. There could be dozens of ways we could reverse a string. However, in this article, we'll learn three different methods to reverse a string in JavaScript.
JavaScript does not have a built-in method for reversing a string. To reverse a string in JavaScript, you can use a combination of three built-in methods: split(), reverse(), and join(). The first method splits a string into an array of characters and returns a new array. The second...
1/**2* @param {string} str3* @returns {string}4*/5varreverseWords =function(str) {6returnstr.trim().split(/\s+/).reverse().join(' ');7}; 正常解法, javascript 不能in-place改变字符串,开了个变量。 1/**2* @param {string} str3* @returns {string}4*/5varreverseWords =function...
JavaScript Code:// Define a function named 'test' with a single parameter 'text' function test(text) { // Check if the input string is empty if (text.length === 0) { // Return a message if the input string is empty return 'String should not be empty!' } // Check if the ...
You need to reduce multiple spaces between two words to a single space in the reversed string. 思路: 核心思路就是找到两个空格之间的单词,然后生成这个新单词。正则表达式消耗了一些时间,用递归之后运行时间降低了不少。 代码: java: 代码语言:javascript 代码运行次数:0 运行 AI代码解释 class Solution {...
split 分开,通过()中的字符使String分开 split()是对字符串进行操作,不会改变原对象,会返回一个数组 vara ='abc'varb = a.split('b')//b=['a','c'] join 拼接,通过()中的字符使obj拼接成字符串 join()方法将数组作为字符串返回,不会改变原数组,会返回一个字符串 ...
代码语言:javascript 代码运行次数:0 运行 AI代码解释 namespace wyn{template<classT>classless{public:booloperator()(constT&x,constT&y)const{returnx<y;}};template<classT>classgreater{public://将仿函数放成public,要不然class默认是私有的 booloperator()(constT&x,constT&y)const{returnx>y;}};}intmain(...
* 注释:String.split() 执行的操作与 Array.join 执行的操作是相反的。 * * */ varstr ="a,b,c,d,e,f,g";//声明一个字符串 str = str.split(',').reverse();//用split函数拆分成数组对象,再用reverse函数将数组倒序排列 alert(str.length+":"+typeof(str)); ...