Salesforce Javascript-Developer-I Exam Practice Test Instant Access

Question 1

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

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

AOn the browser JavaScriptconsole

BOn the terminal console running the web server

CIn the browser performance tools log

DOn the webpage console log

Answer : A

Question 2

A developer at Universal Containers is creating their new landing page based on HTML, CSS, and JavaScript.

To ensure that visitors have a good experience, a script named personalizeWebsiteContent needs to be executed when the webpage is fully loaded (HTML content and all related files), in order to do some custom initializations.

Which implementation should be used to call Fe:s:-a;::eHec5;te::.-.ter.: based on the business requirement above?

AAdd a listener to thewindow object to handle the DOMContentLoaded event

BAdd a handler to the personalizeWebsiteContent script to handle the load event

CAdd a listener to the window object to handle the lead event

DAdd a handler to the personalizeWebsiteContent script tohandle the DOMContentLoaded event

Answer : C

Question 3

A developer tries to retrieve all cookies, then sets a certain key value pair in the cookie. These statements are used:

What is the behavior?

ACookies are read, but the key value is not set because the value is not URL encoded.

BCookies are not read because line 01 should be document, cookies, but the key value is set and all cookies are wiped.

CA Cookies are read andthe key value is set, the remaining cookies are unaffected.

DCookies are read and the key value is set, and all cookies are wiped.

Answer : C

Question 4

Refer to the code below:

const car = {

price:100,

getPrice:function(){

return this.price;

}

};

const customCar = Object.create(car);

customCar.price = 70;

delete customCar.price;const result = customCar.getPrice();

Whatis the value of result after the code executes?

A100

Bundefined

Cnull

D70

Answer : A

Question 5

Given the HTML below:

Which statement adds the priority-account css class to the Applied Shipping row?

Adocument.querySelector('#row-as').classList.add('priority-account');

Answer : A

Question 6

A developer has an is Dog function that takes one argument cat. They want to schedule the function to run every minute.

What is the correct syntax for scheduling this function?

AsetInterval(isDog, 60000,'cat');

Answer : A

Question 7

A developer has an ErrorHandler module that contains multiple functions.

What kind of export should be leveraged so that multiple functions can be used?

Aall

Bnamed

Cmulti

Ddefault

Answer : B

Salesforce Certified JavaScript Developer I Exam Practice Test