Question 1

Refer to the following code:

What will the console show when the button is clicked?

Options :

A : Outer message

B :

Outer message

Inner message

C :

Inner message

Outer message

D : Inner message

Answer: D

Question 2

A developer has the function, shown below, that is called when a page loads.

function onload() {

console.log(''Page has loaded!'');

}

Where can the developer see the log statement after loading the page in the browser?

Options :

A : Terminal running the web server.

B : Browser performance toots

C : Browser javaScript console

D : On the webpage.

Answer: C

Question 3

Considering type coercion, what does the following expression evaluate to?

True + '13' + NaN

Options :

A : ' 113Nan '

B : 14

C : ' true13 '

D : ' true13NaN '

Answer: D

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 without

error?

Choose 2 answers

Options :

A :

// FooUtils.js and BarUtils.js exist

Import (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

A developer has two ways to write a function:

Option A:

function Monster(){

this.growl = ()=>{

console.log('Grr!');

}

Option B:

function Monster(){};

Monster.prototype.growl = ()=>{

console.log('Grr!');

}

After deciding on an option, the developer creates 1000 monster objects.

How many growl methods are created with Option A and Option B?

Options :

A : 1000 for Option A, 1 for Option B

B : 1 methods for both

C : 1000 for both

D : 1 for Option A, 1000 for Option B

Answer: B

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