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...
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...
The simplest way to reverse a string in JavaScript is to split a string into an array,reverse()it andjoin()it back into a string. With ES6, this can be shortened and simplified down to: letstring ="!onaiP"string = [...string].reverse().join("");console.log(string);// "Piano!
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...
2.关联数组 - 类似于JavaScript的对象 格式:var数组名称= new Array( );数组名称[索引值] =值;【索引值是字符串】 注:ECMAScript官方规范中并没有提供关联数组的概念 3.稀疏数组 概念:数组的长度大于数组中元素的个数 数组中元素没有值的情况下,默认undefined ...
JavaScript Code: // Define a function named reverse3 that takes an array as a parameterfunctionreverse3(array){// Use the map method to iterate over the array and reverse the orderreturnarray.map((element,idx,arr)=>arr[(arr.length-1)-idx]);}// Call the function with sample arguments ...
src{String}{String|URL}Astringoraurlparsedbynodeurlmodule.Notethatportisignored,sincetheproxyjustlistenstooneport.target{String|URL}Astringoraurlparsedbynodeurlmodule.opts{Object}routeoptions: examples:{ssl:true}// Will use default ssl certificates.{ssl:{redirect:true,// False to disable HTTPS au...
32#print 32 byte hexdump current block>s sym.main#seek to main (using flag name)>f~foo#filter flags matching 'foo' (internal |grep)>iS;is#list sections and symbols (rabin2 -Ss)>pdf;agf#disassembly and ascii-art function graph>oo+;w hello#reopen in read-write and write a string>?
javaScript reverse a string question: give a string example "hello" output "olleh"; resolve1:functionreverseStr(str){letnewStr="";for(leti=str.length-1;i>=0;i--){newStr+=str.charAt(i);}returnnewStr;}reverseStr("hello");//print olleh...
function reverseString(str) { return (str === '') ? '' : reverseString(str.substr(1)) + str.charAt(0); } reverseString("hello"); // olleh 参考https://www.w3cplus.com/javascript/how-to-reverse-a-string-in-javascript-in-different-ways.html...