Voici le code qui a été utilisé lors de l'exercice 5 :

let a;
console.log(a);
a = 15;
console.log("Ma variable a = " + a);
let b = 9;
console.log("Ma variable b = " + b);
console.log(`${a} + ${b} = ${a + b}`);
console.log(`${a} - ${b} = ${a - b}`);
console.log(`${a} * ${b} = ${a * b}`);
a = "Bonjour";
b = "les amis";
console.log(a + b);
console.log(`${a} + ${b}`);
a = true;
b = false;
console.log("true AND false = " + (a && b));
console.log("true OR false = " + (a || b));
a = new Date();
b = new Date();
b.setDate(b.getDate() - 61);
console.log(`${a.toLocaleString()}\n${a.toLocaleDateString()}\n${a.toLocaleTimeString()}\n${b.toLocaleString()}\n${b.toLocaleDateString()}\n${b.toLocaleTimeString()}`);
a = Math.PI;
b = "bonjour";
let c = true;
let d = new Date();
let e;
console.log(`${typeof a}\n${typeof b}\n${typeof c}\n${typeof d}\n${typeof e}`);