Need help with Use Conditional Logic with If Statements excercise

JavaScript
1

I know I’m “coloring outside the lines” with this question but in this example if I change the trueOrFalse(true) function to something completely unexpected like “blue” I would expect a return of false. Instead I get "ReferenceError: can’t find variable: blue.

Can someone explain this to me?

Your code so far

// Example
function ourTrueOrFalse(isItTrue) {
  if (isItTrue) { 
    return "Yes, it's true";
  }
  return "No, it's false";
}

// Setup
function trueOrFalse(wasThatTrue) {

  // Only change code below this line.
  if (wasThatTrue) {
    return "Yes, that was true";
  }
  return "No, that was false";
  
  // Only change code above this line.

}

// Change this value to test
trueOrFalse(blue);

Your browser information:

Your Browser User Agent is: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_6) AppleWebKit/603.3.8 (KHTML, like Gecko) Version/10.1.2 Safari/603.3.8.

Link to the challenge:

3

Thank you @camperextraordinaire. I now understand the first part of your answer. So Booleans (if statements) are only looking for returns of true or false? These are sort of inherently declared values in JavaScript?

5

@camperextraordinaire you had me until the last example. Sorry if I seem dense. Isn’t 0 a number data type where “0” is a string data type?

Is 0 always assumed to be equivalent to the data type of a boolean false? I should assume 1==true?

7

Thank you so much for taking the time to explain that to me.