reverseWordsMineWrong.js

/*-----------------------------------------------------------------------------
1.reverse every word in the sentence.
2.the orders between words do not change.

the reference used at the second function is from UdemyCourse: LearningAlgorithmsInJavascriptFromScratch
-----------------------------------------------------------------------------*/

function reverseWords(str) {
  return str.split('').reverse().join('');
}
reverseWords('Coding Javascript');
// 'tpircsavaJ gnidoC'
// my code is totally wrong cus it's to reverse the words 
// rather than reverse the sentences 

reverseWordsOfficial.js

function reverseWords2(str) {
  
  var arr = str.split(' ');
  var reversedWordsArr = [];

  arr.forEach(word => {
    reverseWord = '';
    for (var i = word.length - 1; i >= 0; i--) {
      reverseWord += word[i];
    }
    reversedWordsArr.push(reverseWord);
  });
  return reversedWordsArr.join(' ');
}


reverseWords2('Coding Javascript');
// 'gnidoC tpircsavaJ'