Truthy falsesy

[jakobblom]

let isLocked = false;

isLocked ?
console.log(‘You will need a key to open the door.’) : console.log(‘You will not need a key to open the door.’);

let isCorrect = true;

isCorrect ?
console.log(‘Correct!’) :
console.log(‘Incorrect!’);

let favorite_Phrase = ‘Love That!’;

favorite_Phrase === ‘Love That!’ ?
console.log(‘I love that!’) :
console.log(“I don’t love that!”);

whats wrong in the th3 block

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[jakobblom]

i cleared it from solution removed the _ in phase

but still not sure why we define the

let favoritePhrase = 'Love That! ’

then next line we need the === seems like we assign the value twice

and why sosnt the strings need () in truthy falsy

[janbazant1107978602]

The = assigns the value.
The === checks whether things are equal (true if equal, false if not equal)

non-empty strings are truthy
so

if ("a string") {
  console.log("do stuff");
}

is like doing

if (true) {
  console.log("do stuff");
}

[mtf]

@janbazant1107978602

checks whether things are equal

Until coercion is written out of the language we must maintain a distinction between equality and identity. For practical purposes equality might mean, have the same appearance. A numeral in any form still looks like a number. Identity is an exact match both in type and in value.

Yeah, I know this is nitpicking, but with good intentions.

==   =>  equality  "1" == 1   // true

===  =>  identity  "1" === 1  // false