function reverseInPlace(str) {
var words = [];
words = str.split("\s+");
var result = "";
for (var i = 0; i < words.length; i++) {
return result += words[i].split('').reverse().join('');
}
}
console.log(reverseInPlace("abd fhe kdj"))
我期望的是dba ehf jdk
,而我到达这里的是
jdk fhe dba
。有什么问题?
function myFunction(string) {
return string.split("").reverse().join("").split(" ").reverse().join(" ")
};
function reverseInPlace(str) {
var words = [];
words = str.match(/\S+/g);
var result = "";
for (var i = 0; i < words.length; i++) {
result += words[i].split('').reverse().join('') + " ";
}
return result
}
console.log(reverseInPlace("abd fhe kdj"))
Split
首先将字符串变成单词,然后再逆转单个单词
var input = "abd fhe kdj";
var output = input.split( " " ).map( //split into words and iterate via map
s => s.split("").reverse().join( "" ) //split individual words into characters and then reverse the array of character and join it back
).join( " " ); //join the individual words
如果您看起来像这样的O/P:“ JavaScript是最好的” =>“最好的是JavaScript” 可以通过简单的逻辑来完成
//sample string
let str1 = "Javascript is Best";
//breaking into array
let str1WordArr = str1.split(" ");
//temp array to hold the reverse string
let reverseWord=[];
//can iterate the loop backward
for(let i=(str1WordArr.length)-1;i>=0;i--)
{
//pushing the reverse of words into new array
reverseWord.push(str1WordArr[i]);
}
//join the words array
console.log(reverseWord.join(" ")); //Best is Javascript
const reverseWordIntoString = str => str.split(" ").map(word => word.split("").reverse().join('')).join(" ")
const longString = "My name is Vivekanand Panda";
const sentence = "I love to code";
const output = {
[longString]: reverseWordIntoString(longString),
[sentence]: reverseWordIntoString(sentence)
}
console.log(output);
您可以利用
split
map
函数来创建反向单词。
您需要首先使用
sentence
分开
space
,然后您只需扭转每个单词并再次加入反转单词。
function reverseWord (sentence) {
return sentence.split(' ').map(function(word) {
return word.split('').reverse().join('');
}).join(' ');
}
console.log(reverseWord("abd fhe kdj"));
␣
\n
和托架返回\r
),并保留了它们的订单(未反转):
const sentence = "abd\t fhe kdj";
function reverseWords(sentence) {
return sentence
.split(/(\s+)/)
.map(word => /^\s+$/.test(word) ? word : word.split('').reverse().join(''))
.join('');
}
console.log(reverseWords(sentence));
If you want to reverse a string by word:
Example: 'Welcome to JavaScript' to 'JavaScript to Welcome'
You can also do something like:
var str = 'Welcome to JavaScript'
function reverseByWord(s){
return s.split(" ").reverse().join(" ");
}
// Note: There is space in split() and Join() method
reverseByWord(str)
// output will be - JavaScript to Welcome
您可以通过以下代码轻松实现这一目标
唯一的错误是进行分裂时,您可以做类似的事情:
function reverseInPlace(str) {
var words = [];
words = str.split(" ");
console.log(words);
var result = "";
for (var i = 0; i < words.length; i++) {
result += words[i].split('').reverse().join('') +" ";
}
return result
}
console.log(reverseInPlace("abd fhe kdj"))
str.split(" ")
- >映射每个单词并分为每个字符
.map(word => word.split("")
- >分别扭转每个单词并加入IT
const str = "abd fhe kdj";
const reverseWord = str => {
let reversed = "";
reversed = str.split(" ").map(word => word.split("").reverse().join("")).join(" ")
return reversed
}
console.log(reverseWord(str));
对于现在研究这个问题的人,请考虑您的应用程序是否不需要处理标点符号(例如不移动标点符号)或翻转连字词的单词(例如,办理登机手续应该是ni-kcehc或kcehc-ni?) .
“无知是幸福吗?!”真的应该是“ ecnarongi si!?ssilb”?
以下解决方案不会移动标点符号,也不会翻转连字符的单词:
/**
* 1. Split "non letters"
* 2. Reverse each piece
* 3. Join the pieces again, replacing them by " "
* 4. Split all characters
* 5. Replace " " by the original text char
*/
function reverseWords(text) {
return text.split(/[^A-Za-zÀ-ÿ]/g)
.map(w => w.split("").reverse().join(""))
.join(" ")
.split("")
.map((char, i) => char === " " ? text[i] : char)
.join("")
}
function reverse(str) {
var rev = str.split("").map(word => word.split("").reverse().join("")).join(" ")
return rev
}
console.log(reverse("soumya prakash")); // aymuos hsakarp
reverseStringBywords = (str) =>{
let rev = ""
str.split(" ").forEach(s =>{
rev = rev + s.split("").reverse().join("") + " "
})
return rev
}
console.log("reverseStringBywords ", reverseByWord("JavaScript is awesome"));
let reverseOfWords = (words) =>{
_words = words.split(" ").map(word => word.split('').reverse().join(""))
console.log("reverse of words ", _words.join(' '))
}
reverseofWords("hello how are you ")
function reverseString(string, separator) {
return string.split(separator).reverse().join(separator);
}
const str = "See the magic of javaScript"
const reverseWholeString = reverseString(str, "");
console.log("Reverse the whole string ->", reverseWholeString);
const reverseEachWord = reverseString(reverseWholeString, " ");
console.log("Reverse each word ->", reverseEachWord);
没有使用构建方法,用于循环
const mainString = "this is test hey";
const splitedString = mainString.split(" ");
let string = "";
let word = "";
let result = "";
for (let i=0;i<splitedString.length;i++){
word = splitedString[i];
for(let j=0;j<word.length;j++){
string = word[j] + string;
if (word.length - 1 === j) {
word = "";
result = result + " " + string;
string = ""
}
}
}
console.log(result)
LETreversemsg = msg.split(“”).map(w => w.split(“”)。rectervers()。recters()。join(''))。join('');
console.log(reverseMsg);
let s = "getting good at coding needs a lot of practice"
let b = s.split(" ").reverse().join(" ")
console.log(b)