reverse a word in javascript code example

Example 1: javascript reverse a string

function reverseString(s){
    return s.split("").reverse().join("");
}
reverseString("Hello");//"olleH"

Example 2: javascript string reverse

"this is a test string".split("").reverse().join("");
//"gnirts tset a si siht"

// Or
const reverse = str => [...str].reverse().join('');

// Or
const reverse = str => str.split('').reduce((rev, char)=> `${char}${rev}`, '');

// Or
const reverse = str => (str === '') ? '' : `${reverse(str.substr(1))}${str.charAt(0)}`;

// Example
reverse('hello world');     // 'dlrow olleh'

Example 3: reverse every word in a string javascript

// hey buddy, here are different implementations, choose your favourite !!

// Examples
// "This is an example!" ==> "sihT si na !elpmaxe"
// "double  spaces"      ==> "elbuod  secaps"

function reverseWords(str) {
  const allWords = str.split(" ")
  return allWords.map(item => item.split("").reverse().join("")).join(" ")
}


function reverseWords(str) {
  return str
    .split(" ")
    .map(word => {
      return word.split("").reverse().join("")
    })
    .join(" ")
}


var reverseWords = s => s.replace(/\S+/g, v => [...v].reverse().join``)

Example 4: reverse every word in a string javascript

function reverseWords(str) {
  const allWords = str.split(" ")
  return allWords.map(item => item.split("").reverse().join("")).join(" ")
}

Example 5: reverse words in a string javascript

function reverseString(str) {
    return str.split("").reverse().join("");
}
reverseString("hello");

Example 6: javascript reverse string without reverse method

function reverse(str){  
  let reversed = "";      
   for (var i = str.length - 1; i >= 0; i--){         
     reversed += str[i];  
   }     
  return reversed;
}