Basic Algorithm Scripting - Boo who

JavaScript
1

Tell us what’s happening:
Describe your issue in detail here.

Is it converting into boolean or checking boolean

Your code so far

function booWho(bool) {
  return bool === !!bool ? true : false;
}

booWho(null);

Your browser information:

User Agent is: Mozilla/5.0 (X11; Linux x86_64; rv:109.0) Gecko/20100101 Firefox/115.0 Mercury/115.0

Challenge: Basic Algorithm Scripting - Boo who

Link to the challenge:

2

The double negation will cast it to the boolean.

I would suggest adding a couple of console.logs so you can see what’s happening
Also, since this is a working solution, I am going to wrap it in spoiler tags

function booWho(bool) {
  console.log(!bool) // null value returns true
  console.log(!!bool) // null value returns false
  
  return bool === !!bool ? true : false;
}

booWho(null);
3

Also, you technically don’t need the ternary here.

You could just return the strict equality expression

  return bool === !!bool;
4

thank you for your time

5

image
image1366×768 112 KB

it return true but it test case it should written false how I got all test case passed

6

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