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Salesforce JavaScript-Developer-I Dumps Questions Answers

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Last Update: Mar 4, 2021
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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 = name;

03 }


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

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

07 )

08 function Console 16 Bit (name) {

09, name) ;

10 }

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

12 //insert code here

13 console.log( ` $( 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 . . .



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


Console16bit.prototype.load = function(gamename) {


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

(gamename) {


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:



Boolean(var1 && var2)


var1 && var2


var1.toBoolean() && var2toBoolean()


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 ?



Returns 0


Throws an error


Returns 10


Returns NaN

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