Build a Boolean Check Function - Build a Boolean Check Function

JavaScript
1

Tell us what’s happening:

I’ve finished my code, but I get a error at step 7. I don’t see anything wrong. Maybe someone could help me?

// running tests
7. booWho(1) should return false.
// tests completed

This is the error.

Your code so far

function booWho(argument){
  if(argument  == true) {
    return true;
  } 
  else if(argument == false){
    return true;
  }
  else if(argument == 1,2,3){
    return false;
  }
  else if(argument == booWho.slice()){
    return false;
  }
  else if(argument == "a" || 1){
    return false;
  }
  // this step
  else if(argument == 1){
    return false;
  }
  else if(argument == NaN){
    return false;
  }
  else if(argument == "a"){
    return false;
  }
  else if(argument == "true"){
    return false;
  }
  else if(argument == "false"){
    return false;
  }
  else {
    return "false";
  }
}

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Challenge Information:

Build a Boolean Check Function - Build a Boolean Check Function

GitHub Link: freeCodeCamp/curriculum/challenges/english/blocks/lab-boolean-check/a77dbc43c33f39daa4429b4f.md at main · freeCodeCamp/freeCodeCamp · GitHub

2

Hi @LamarSt

Check how you are using the “OR” operator.

Also, check what the comparison for the first if statement is checking.

Happy coding

3

I tried console logging the first statement but it doesnt give me any output. It’s just running the test and completing it. And for the OR statement. I couldnt find another way of using the OR operator. Any help appreciated.

4

the way you are checking is not going to work

first, let me point out a couple of things:

there are three separate statements here, argument == 1 is one, then there is 2 and there is 3, you are not checking argument against 2 and 3 here

booWho is your function, why are you using slice on it?

here you are writing argument == "a" OR 1, the 1 is not being checked against argument

now, about ==

You are using == to compare your argument against many things
but…

image

true == 1 // true

NaN == NaN // false

is there maybe an other comparison operator that is more strict than this?

but that will not help with NaN == NaN being false

suggested review:

5

This was my problem. Thank you so much

I changed all == to === for a stricter check.

Solution:

now, about ==

You are using == to compare your argument against many things
but…

image

true == 1 // true

NaN == NaN // false

is there maybe an other comparison operator that is more strict than this?

but that will not help with NaN == NaN being false