truthy-falsy.js

/* Truthy/Falsy value */
let age = 0;
if (age) {
	console.log(true);
} else {
	console.log(false);
}
// Output : false

let name; // undefined, falsy
// name = "Smith"; // truthy
// name = " "; //truthy
// name = []; //truthy
// name = {}; //truthy
console.log(name);

if (name) {
	console.log(true);
} else {
	console.log(false);
}
// Output : false

truthy-falsy.md

truthy	falsy
1	0
true	false
non 0 value	undefined
" " or "anything"	null, ""
any numbers	NaN
{}, []	-