Comparisons

       
        const original = 'Susan';
        const clone = 'SUSAN';

        console.group('String Comparison');
            console.log(original == 'Susan');   // true
            console.log(original == clone); // false
            console.log(original.toLowerCase() == clone.toLowerCase()); // true
        console.groupEnd();

        const num1 = 10;
        const num2 = '10';

        console.group('Number Comparison');
            console.log(num1 == num2);  // true
            console.log(num1 === num2)  // false
            console.log(num1 != num2);  // false
            console.log(num1 !== num2)  // true
        console.groupEnd();

        let what;   // undefined
        let thing = null;

        console.group('Boolean Comparison');
            console.log(Boolean(original)); // true
            console.log(Boolean(what)); // false
            console.log(Boolean(thing)); // false
            console.log(Boolean(num1)); // true
            console.log(Boolean(num2)); // true
            console.log(Boolean({})); // true
            console.log(Boolean([])); // true
        console.groupEnd();

        const firstArr = [1, 2, 3];
        const secondArr = [1, 2, 3];
        const firstObj = { color: 'red' };
        const secondObj = { color: 'red' };

        console.group('Array & Object Comparison');
            console.log(firstArr == secondArr); // false
            console.log(firstObj == secondObj); // false
        console.groupEnd();

        console.group('&& (AND) || (OR) Comparsion');
            console.log(Boolean('lorem') && Boolean('Ipsum'));  // true
            console.log(Boolean('lorem') && Boolean(''));   // false
            console.log(Boolean('lorem') || Boolean(''));   // true
            console.log(Boolean('') || Boolean(''));   // false
        console.groupEnd();