Question 1

Refer to the following code:class Vehicle{constructor(plate){this.plate = plate;}}class Truck extends Vehicle{constructor(plate, weight){//Missing codethis.weight = weight;}displayWeight(){console.log(`The truck ${this.plate} has a weight of ${this.weight}lb.`);}}let myTruck = new Truck('123Ab',5000);myTruck.displayWeight();Which statement should be added to missing code for the code to display 'The truck 123AB has aweight of 5000lb.

Options :

A : super(plate)

B : super.plate = plate

C : Vehicle.plate = plate

D : this.plate = plate

Answer: A

Question 2

Refer to the code below:Which value can a developer expect when referencing country,capital,cityString?

Options :

A : 'London'

B : undefined

C : An error

D : 'NaN'

Answer: D

Question 3

Refer to code below:Let a ='a';Let b;// b = a;console.log(b);What is displayed when the code executes?

Options :

A : ReferenceError: b is not defined

B : A

C : Undefined

D : Null

Answer: C

Question 4

Refer to the following code that imports a module named utils:import (foo, bar) from '/path/Utils.js';foo() ;bar() ;Which two implementations of Utils.js export foo and bar such that the code above runs withouterror?Choose 2 answers

Options :

A : // FooUtils.js and BarUtils.js existImport (foo) from '/path/FooUtils.js';Import (boo) from ' /path/NarUtils.js';

B : const foo = () => { return 'foo' ; }const bar = () => { return 'bar' ; }export { bar, foo }

C : Export default class {foo() { return 'foo' ; }bar() { return 'bar' ; }}

D : const foo = () => { return 'foo';}const bar = () => {return 'bar'; }Export default foo, bar;

Answer: B,C

Question 5

Refer to the following code:What will the console show when the button is clicked?

Options :

A : Outer message

B : Outer messageInner message

C : Inner messageOuter message

D : Inner message

Answer: D

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