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Vendor: Salesforce

Certifications: Salesforce Developer

Exam Name: Salesforce Certified JavaScript Developer I

Exam Code: JAVASCRIPT-DEVELOPER-I

Total Questions: 223 Q&As ( View Details)

Last Updated: Apr 15, 2024

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JAVASCRIPT-DEVELOPER-I Q&A's Detail

Exam Code: JAVASCRIPT-DEVELOPER-I
Total Questions: 223
Single & Multiple Choice 223

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JAVASCRIPT-DEVELOPER-I Online Practice Questions and Answers

Questions 1

Refer to code below:

Function muFunction(reassign){

Let x = 1;

var y = 1;

if( reassign ) {

Let x= 2;

Var y = 2;

console.log(x);

console.log(y);}

console.log(x);

console.log(y);}

What is displayed when my Function(true) is called?

A. 2 21 1

B. 2 2 undefined undefined

C. 2 2 1 2

D. 2 2 2 2

Show Answer
Questions 2

Refer to the code below:

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

A. Return 0

B. Return 5

C. Return NaN

D. Return Infinity

Show Answer
Questions 3

Refer to the HTML below:

  • Leo

  • Tony

  • Tiger

Which JavaScript statement results in changing " Tony" to "Mr. T."?

A. document.querySelectorAll(`$main $TONY').innerHTML = ' Mr. T. ';

B. document.querySelector(`$main li:second-child').innerHTML = ' Mr. T. ';

C. document.querySelector(`$main li.Tony').innerHTML = ' Mr. T. ';

D. document.querySelector(`$main li:nth-child(2)'),innerHTML = ' Mr. T. ';

Show Answer
Questions 4

Developer removes the HTML class attribute from the checkout button, so now it is simply:

.

There is a test to verify the existence of the checkout button, however it looks for a button with class= "blue". The test fails because no such button is found.

Which type of test category describes this test?

A. True positive

B. True negative

C. False positive

D. False negative

Show Answer
Questions 5

Refer to the code snippet:

Function getAvailabilityMessage(item) {

If (getAvailability(item)){

Var msg ="Username available";

}

Return msg;

}

A developer writes this code to return a message to user attempting to register a new username. If the username is available, variable.

What is the return value of msg hen getAvailabilityMessage ("newUserName" ) is

executed and getAvailability("newUserName") returns false?

A. "Username available"

B. "newUserName"

C. "Msg is not defined"

D. undefined

Show Answer More Questions

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Salesforce JAVASCRIPT-DEVELOPER-I exam official information: The Salesforce Certified JavaScript Developer I is intended for individuals who have knowledge, skills, and experience developing front-end and/or back-end JavaScript applications for the web stack.