134. Coding Challenge 1

<script>
      document.body.append(document.createElement('button'));
      const poll = {
        question: 'What is your favourite programming language?',
        options: ['0:JavaScript', '1:Phyton', '2:Rust', '3:C++'],
        answers: new Array(4).fill(0),
        registerNewAnswer(){
          const answer = Number(prompt(`${this.question}\n${this.options.join('\n')}\n（Write option number)`));
          //Update answer //Error: *typeof
          typeof answer === 'number' && answer < this.options.length && this.answers[answer]++;
          //console.log(this.answers);
          //error without this.displayResults
          this.displayResults('string');
        },
        //error404 type set default to array
        displayResults(type = 'array'){
          if(type === 'array'){
            console.log(this.answers);
          }else if (type === 'string'){
            console.log(`Poll results are ${this.answers}`);
          };
        },
      };
      document.querySelector('button').addEventListener('click', poll.registerNewAnswer.bind(poll));
</script>