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6_boolean.html
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<!DOCTYPE html>
<html>
<head>
<title>boolean</title>
</head>
<body>
<script>
// console.log(typeof true);
// true
// false
// console.log(3 > 5-5);
// console.log(5 === '5.00');
// if(true){
// console.log('hello');
// }
// else{
// console.log('else');
// }
// const age =15;
// if(age >= 16){
// console.log('You can drive');
// }
// else if(age>=14){
// console.log('Almost there');
// }
// else{
// console.log('You can not drive');
// }
//truthy and falsy values
if (0) { // falsy value- false ,0,' ', NaN, undefined, null
console.log('truthy');
}
const cartQuantity = 5;
if (cartQuantity) {
console.log('Cart has products');
}
console.log(!0);
console.log('text' / 5);
let var1 = undefined;
console.log(var1);
const result = 0 ? 'truthy' : 'falsy'; // ternrary operator
console.log(result);
const message = 5 && console.log('hello'); // gaurd operator
console.log(message);
const currecy = undefined || 'USD'; // default operator
console.log(currecy);
</script>
</body>
</html>