toLowerCase() not working.

Question

Hi!

I cannot figure out why my toLowerCase() method is not working.

Can anyone help?

Thanks!

Here is my code:

var answer;
var correct;
var incorrect;
var html;
var questions = [

  ["What is the name of the president of the USA?", "barack obama"],
  ["Who won the super bowl yesterday?", "broncos"],
  ["What color is the sun?", "yellow"]

];


//console.log(questions[2]);

  for(var i=0; i<questions.length; i++) {
    answer = prompt(questions[i][0]);
    answer.toLowerCase();
    if(answer === questions[i][1]) {
      correct++;
    }
    else {
      incorrect++;
    }
  }
  html = "Congratulations, you got " + correct + " answers correct!";



function print(message) {
  document.write(message);
}

 print(html);

Answer 1 · 2016-02-08T14:27:29Z

February 8, 2016 2:27pm

Hi Jennifer,

Do you need to assign the result of the toLowerCase() method? (I'm not a JavaScript programmer so don't know).

The method may not have an impact on the object so answer stays the same but if you assign to another variable, that may be the lowercase version of answer:

guesswork.js

var answer = "ANSWER";
var anotherAnswer = answer.toLowerCase();
// answer still holds "ANSWER"

// or assign back to itself 
answer = answer.toLowerCase();

Just guessing - might be worth a try.

Steve.

Answer 2 · 2016-02-08T14:32:31Z

February 8, 2016 2:32pm

Hi Jennifer,

Like Steve said, you need to save the conversion in another variable.

Or you could just use it directly in the if clause like this:

 if(answer.toLowerCase() == questions[i][1])

Also initiate your var correct to 0.

~Per

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Jennifer Hughes

Jennifer Hughes

toLowerCase() not working.

2 Answers

Steve Hunter

Steve Hunter

Per Karlsson

Per Karlsson