check-js-boolean.js

// Write down what will these statements return:

console.log(true && false); // ==> ?
console.log(11 % 3 === 2); // ==> ?
console.log(false || true); // ==> ?
console.log(!true || false); // ==> ?
console.log(17 == '17'); // ==> ?
console.log(123 === '123'); // ==> ?

let statement = 'I love JavaScript!';
let subStatement = statement.substr(2, 9);
console.log(statement); // ==> ?

statement[0].toLowerCase();
console.log(statement); // ==> ?