Pass the Salesforce Developer JavaScript-Developer-I Questions and answers with ValidTests

UniversalContainers recently launched its new landing page to host a crowd-funding

campaign. The page uses an external library to display some third-party ads. Once the page is

fully loaded, it creates more than 50 new HTML items placed randomly insidethe DOM, like the

one in the code below:

All the elements includes the same ad-library-item class, They are hidden by default, and they are randomly displayed while the user navigates through the page.

A developer wants to use a module named universalContainersLib and then call functions from it.

How should a developer import every function from the module and then call the functions fooand bar?

Whichstatement accurately describes an aspect of promises?

Refer to code below:

Let a =’a’;

Let b;

// b = a;

console.log(b);

What is displayed when the code executes?

Given the code below:

01 function GameConsole (name) {

02 this.name = name;

03 }

04

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

06 console.log( ` $(this.name) is loading agame : $(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 cartridgegame: Super Monic 3x Force . . .

A developer is wondering whether to use, Promise.then or Promise.catch,especially

when a Promise throws an error?

Which two promises are rejected?

Which 2 are correct?

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

True + 3 + ‘100’ + null

A developer creates a genericfunction to log custom messages in the console. To do this,

the function below is implemented.

01 function logStatus(status){

02 console./*Answer goes here*/{‘Item status is: %s’, status};

03 }

Which three console logging methods allow the use of string substitution in line 02?

Which statement parses successfully?

Refer to the HTML below:

• Leo
• Tony
• Tiger