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Grokking JavaScript Fundamentals

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How do you create a new JavaScript object named car with properties make and model?

Choose all correct options

var car = Object("make", "model");

var car = new Object({make: "Toyota", model: "Corolla"});

var car = {"make": "Toyota", "model": "Corolla"};

var car = Object.create("make", "model");

What will the following code output?

var num = new Number(5);
console.log(typeof num);

A

number

B

object

C

Number

D

string

How do you find the largest number in the list [1, 3, 2]?

Choose all correct options

Math.max(1, 3, 2);

Math.max([1, 3, 2]);

Math.max.apply(null, [1, 3, 2]);

[1, 3, 2].max();

What does the following code log?

var date = new Date(2020, 0, 1);
console.log(date.getMonth());

A

0

B

1

C

"January"

D

Undefined

Which of the following is a correct way to add a new property color to an existing object car?

A

car.add("color", "blue");

B

car[color] = "blue";

C

car.color = "blue";

D

Both B and C are correct.

What is the result of the following code snippet?

console.log(Math.round(7.5));

A

7

B

8

C

7.5

D

NaN

Which statement will correctly parse the string "100" as an integer?

Choose all correct options

parseInt("100");

Number.parseInt("100");

String.toInt("100");

Both A and B are correct.

.....

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