1.1

function doubleOddNumbers(numbers) {

console.log(numbers);

return numbers.filter(num => num % 2 !== 0).map(num => num * 2);

}

const myNumbers = [1, 2, 3, 4];

console.log(doubleOddNumbers(myNumbers));

1.2

const monday = [

{

name: "Write a summary HTML/CSS",

duration: 180

},

{

name: "Some web development",

duration: 120

},

{

name: "Fix homework for class10",

duration: 20

},

{

name: "Talk to a lot of people",

duration: 200

}

];

const tuesday = [

{

name: "Keep writing summary",

duration: 240

},

{

name: "Some more web development",

duration: 180

},

{

name: "Staring out the window",

duration: 10

},

{

name: "Talk to a lot of people",

duration: 200

},

{

name: "Look at application assignments new students",

duration: 40

}

];

const tasks = [...monday, ...tuesday];

const rate = 20;

const tasksInHour = tasks

.map(i => i.duration / 60)

.filter(i => i >= 2)

.map(i => i * rate)

.reduce((total, value) => total + value)

.toFixed(2);

console.log(`€ ${tasksInHour}`);

// 60, 40, 66.66666, 80, 60, 66.6666

// total , value , result

// iteration 0 ... total = 60, value = 40 ---> 100

// iteration 1 ... total = 100, value = 66.66 --> 166.666

// iteration 2 ... total = 166.666, value = 80 --> 246.666

// iteration n .. total = something number