Arrays.js

let people = ['Jack', 'John', 'James'];
let colors = ['red', 'blue', 'green'];

console.log(people);
console.log(colors);

// Length of an array
console.log(colors.length)

// Add purple
colors.push('purple');
console.log(colors);

// Add yellow to the beginning
colors.unshift('yellow');
console.log(colors);

// Remove from end
colors.pop();
console.log(colors);

// Remove from beginning
colors.shift();
console.log(colors);


//          0      1       2
// colors ["red", "blue", "green"]
// Get the second item from the array
// console.log(colors[1]) // blue

// Add a name to each color
for (let i = 0; i < colors.length; i++) {
    colors[i] = colors[i] + ' ' + people[i];
    console.log(colors[i]);
}

Booleans.js

let iAmManus = true
let iAmFilmone = false

console.log(iAmManus) // true

console.log(!iAmManus) // false
console.log(!true) // false

if (true) {
    console.log('something')
}


if (false) {
    console.log('not something')
}


// Every variable has a truthy or falsy value
// https://developer.mozilla.org/en-US/docs/Glossary/Truthy
// https://developer.mozilla.org/en-US/docs/Glossary/Falsy
if ('') {
    console.log('run this?');
}

if (0) {
    console.log('run 0?');
}


if (-1) {
    console.log('run -1?');
}

let name = 'Manus'

if ('') {
    console.log('thanks for giving us your name')
} else {
    console.error('fuck you forgot your name')
}

Objects.js

// Key: Value
let car = {
    color: 'blue',
    engine: 'V8',
    brand: 'BMW',
    kilometers: 123378,
    owner: {
        name: 'Filmone',
        gender: 'male'
    },
    previous_owners: [
        'Johnny',
        'Jack',
        'Maria'
    ]
}

// Get the owner of the car
console.log(car.owner)

// What information is in a object?
console.log(Object.keys(car))

// Loop over all the keys and output the values
Object.keys(car).forEach((key) => {
    console.log(key)
    console.log(car[key])
})

car.tyre_thickness = '2mm'

console.log(car)