function reverseString(str) { // 设置递归终点(弹出条件) if (str.length === 1) { return str; } else { // 递归调用 return reverseString(str.substr(1)) + str[0]; } } 解释 这种方法,一开始不能理解没关系。等做到高级算法题,再回来看看应该就可以理解了 递归涉及到两个因素,递归调用以及弹出...
// Define a function named 'reverse_string' that takes a string as input and returns its reversefnreverse_string(input:&str)->String{// Create a new String to store the reversed stringletmutreversed_string=String::new();// Iterate over the characters of the input string in reverse orderf...
首先执行reverseString("abc"),这时候传入的str不为空,所以执行else部分。读到了reverseString(str.substr(1)),这时候就是递归调用,执行这段代码,其中str.substr(1)为"bc" reverseString("bc"),这时候传入的str不为空,所以执行reverseString(str.substr(1)),其中str.substr(1)为"c" reverseString("c"),这...
functionreverseString(str) {returnstr.split('').reverse().join(''); } reverseString("hello");
function stringReverse(string) { if (string === "") return ""; else return stringReverse(string.substr(1)) + string.charAt(0); } console.log(stringReverse("Reverse String")); // output: gnirtS esreveR You can also recurse using the conditional (ternary) operator ("?"): ...
Use reduce() function in JavaScript to make a reverse string from an array by concatenating the string in the forward direction. // <em>Function to reverse the string</em> function ReverseString(str) { // <em>Returning reverse string</em> return [...str].reduce((x, y) =>y.concat(...
Reverse a String Problem You need to reverse the order of letters in a string. Solution Convert the string to an array of characters and use theArray.Reversemethod, or use the legacyStrReverseVisual Basic 6 function. Discussion The functionality for reversing a string isn’t built into the...
<script type="text/javascript">varstr="bugshouji.com";varre=reverse(str);console.log(re);functionreverse(s){vararr=s.split("");changeStr(arr,arr.length);returnarr.join("");}/** * arr:字符串数组 * len:长度 **/functionchangeStr(arr,len){if(len>1){for(vari=0;i<len-1;i++)...
=MID($A$1,LEN($A$1)-ROW(B1)+1,1) The function LEN($A$1) returns the length of the string in cell A1. We don’t want this cell reference to change when copied to the cells below B1, so we locked the cell reference by adding ‘$’ signs to it. The length of the string ...
...REVERSE is an undocumented Oracle string function, which returns the input string in its reverse order...SQL> select reverse('12345') from dual; REVER --- 54321 REVERSE函数是将数字的顺序逆序打印。...--- nls_language string AMERICAN 登录到笔记本的PLSQL中, 88740 Django(8)reverse函数「建...