Free Salesforce JavaScript-Developer-I Practice Exam with Questions & Answers | Set: 5

developer publishes a new version of a package with new features that do not break

backward compatibility. The previous version number was 1.1.3.

Following semantic versioning format, what should the new package version number

be?

Which statement can a developer apply to increment the browser's navigation history without a page refresh?

Which statement can a developer apply to increment thebrowser's navigation history without a page refresh?

myArraym can have one level, two levels, or morelevels.

Which statement flattens myArray when it can be arbitrarily nested?

Given the HTML below:

Which statement adds the priority-account CSS class to the Universal Containers row?

Refer to the code below:

ConstresolveAfterMilliseconds = (ms) => Promise.resolve (

setTimeout ((=> console.log(ms), ms ));

Const aPromise = await resolveAfterMilliseconds(500);

Const bPromise = await resolveAfterMilliseconds(500);

Await aPromise, wait bPromise;

What is the result of running line 05?

A developer is leading the creation of a new web server for their team that will fulfill API requests from an existing client.

The team wants a web server that runs on Node.Js, and they want to use thenew web framework Minimalist.Js. The lead developer wants to advocate for a more seasoned back-end framework that already has a community around it.

Which two frameworks could the lead developer advocate for?

Choose 2 answers

Refer to the code below:

let timeFunction =() => {

console.log(‘Timer called.”);

};

let timerId = setTimeout (timedFunction, 1000);

Which statement allows a developer to cancel the scheduled timed function?

A developer uses a parsed JSON string to work with user information as in the block below:

01 const userInformation ={

02 “ id ” : “user-01”,

03“email” : “user01@universalcontainers.demo”,

04 “age” : 25

Which two options access the email attribute in the object?

Choose 2 answers

A developer is creating a simple webpage with a button. When a userclicks this button

for the first time, a message is displayed.

The developer wrote theJavaScript code below, but something is missing. The

message gets displayed every time a user clicks the button, instead of just the first time.

01 functionlisten(event) {

02 alert ( ‘Hey! I am John Doe’) ;

03 button.addEventListener (‘click’, listen);

Which two code lines make this code work as required?

Choose 2 answers

A developer has the following array of student test grades:

Let arr = [ 7, 8, 5, 8, 9 ];

The Teacherwants to double each score and then see an array of the students

who scored more than 15 points.

How should thedeveloper implement the request?