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Salesforce JavaScript-Developer-I Dumps Questions Answers

Exam Code:
JavaScript-Developer-I
Last Update: Mar 4, 2021
144 Questions
$70  $139.99
$52.5  $104.99
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Salesforce JavaScript-Developer-I Dumps Questions Answers

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Salesforce Certified JavaScript Developer I (WI21) Questions and Answers

Questions 1

Given the code below:

01 function GameConsole (name) {

02 this.name = name;

03 }

04

05 GameConsole.prototype.load = function(gamename) {

06 console.log( ` $(this.name) is loading a game : $(gamename) …`);

07 )

08 function Console 16 Bit (name) {

09 GameConsole.call(this, name) ;

10 }

11 Console16bit.prototype = Object.create ( GameConsole.prototype) ;

12 //insert code here

13 console.log( ` $(this.name) is loading a cartridge game : $(gamename) …`);

14 }

15 const console16bit = new Console16bit(‘ SNEGeneziz ’);

16 console16bit.load(‘ Super Nonic 3x Force ’);

What should a developer insert at line 15 to output the following message using the

method ?

> SNEGeneziz is loading a cartridge game: Super Monic 3x Force . . .

Options:

A.

Console16bit.prototype.load(gamename) = function() {

B.

Console16bit.prototype.load = function(gamename) {

C.

Console16bit = Object.create(GameConsole.prototype).load = function

(gamename) {

D.

Console16bit.prototype.load(gamename) {

Questions 2

Given two expressions var1 and var2. What are two valid ways to return the logical AND

of the two expressions and ensure it is data type Boolean ?

Choose 2 answers:

Options:

A.

Boolean(var1 && var2)

B.

var1 && var2

C.

var1.toBoolean() && var2toBoolean()

D.

Boolean(var1) && Boolean(var2)

Questions 3

Refer to the code below:

Const myFunction = arr => {

Return arr.reduce((result, current) =>{

Return result = current;

}, 10};

}

What is the output of this function when called with an empty array ?

Options:

A.

Returns 0

B.

Throws an error

C.

Returns 10

D.

Returns NaN

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