Question

62

Boolean is not a function

rated 0 times [ 69] [ 7] / answers: 1 / hits: 9686 / 10 Years ago, fri, may 23, 2014, 12:00:00

I'm just trying to figure out why this code isn't working.

var programming = false;

var happy = function() {

  if(programming === true) {

      happy = false;

  }

  else {

      happy = true

  }

};

or my secondary code

var programming = false;

var happy = function() {

  if(programming === true) {

      happy = false;

  }

  if(programming) {

      happy = true;

  }

  };

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kalistaz

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1 Year ago

answered 10 Years ago neildrews · Accepted Answer

I think you mean

var programming = false;

var happy = function() {

  if(programming === true) {

      return false;

  }

  else {

      return true;

  }

};

This is how javascript works. You set the return value of a function using the keyword return, not by reassigning the function to it's return value.

What happens with your code is that the first time the function is called, it replaces itself by it's return value (that is a boolean). The second time you try to call it, the function doesn't exist anymore, because the variable happy now contains a boolean (the result of the first time you called it).