Discussion on: Devmates.co [Reverse Words In String]

[Alex Wawl 🐼]

I'll be the first.

function reverseWordsInString (phrase) {
          let result = "";
          let reversed_word = "";
          for (let i = 0; i < phrase.length; i++) {
              if (isSeparator(phrase[i])) {
                  result += reversed_word;
                  result += phrase[i];
                  reversed_word = "";
              } else {
                  reversed_word = phrase[i] + reversed_word;
              }
          }

          if (reversed_word.length > 0){
               result += reversed_word;
          }

          return result;
      }

      function isSeparator(symbol){
          switch (symbol) {
              case ' ':
                  return true;
              default:
                  return false;
          }
      }

Test Cases:

let reverseWordsInString = require('./someFile.js');


    test('Empty string', ()=>{
      expect(reverseWordsInString("")).toBe("")
    });

    test('One word', ()=>{
      expect(reverseWordsInString("hello")).toBe("olleh")
    });

    test('Valid string with single spaces', ()=>{
      expect(reverseWordsInString('hello this is devmates!')).toBe('olleh siht si !setamved')
    });

    test('Only spaces in string', ()=>{
      expect(reverseWordsInString("    ")).toBe("    ")
    });

    test('Multiply Spaces at the beginning in given string', ()=>{
      expect(reverseWordsInString("   hello this is devmates!")).toBe("   olleh siht si !setamved")
    });

    test('Multiply Spaces at the end in given string', ()=>{
      expect(reverseWordsInString("hello this is devmates!  ")).toBe("olleh siht si !setamved  ")
    });

    test('Multiply spaces at the beginning and at the end in given string', ()=>{
      expect(reverseWordsInString("  hello this is devmates!   ")).toBe("  olleh siht si !setamved   ")
    });

    test('Multiply spaces everywhere in given string', ()=>{
      expect(reverseWordsInString("   hello    this     is devmates  ")).toBe("   olleh    siht     si setamved  ")
    });