JavaScript-Developer-I Practice Tests | JavaScript-Developer-I Reliable Exam Prep

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Salesforce JavaScript-Developer-I Exam Overview:

Certification Vendor:	Salesforce
Exam Name:	Salesforce Certified JavaScript Developer I Exam
Exam Number:	JS-Dev-101 / JavaScript-Developer-I
Exam Price:	USD 200 (+ applicable taxes)
Exam Format:	Multiple-select, Multiple-choice
Exam Duration:	105 minutes
Certificate Validity Period:	No expiration; requires regular maintenance via Trailhead modules
Available Languages:	Japanese, English
Passing Score:	65%
Real Exam Qty:	60 scored + up to 5 unscored
Related Certifications:	Salesforce Certified Lightning Web Components Specialist Salesforce Certified Platform Developer I
Recommended Training:	Salesforce JavaScript Developer I Certification Prep
Exam Registration:	Salesforce Certification Registration
Sample Questions:	Salesforce JavaScript-Developer-I Sample Questions
Exam Way:	Online proctored or onsite at authorized testing centers
Pre Condition:	No formal prerequisites; 1–2 years of JavaScript development experience recommended
Official Syllabus URL:	https://trailhead.salesforce.com/credentials/javascript-developer-i

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Salesforce JavaScript-Developer-I Certification Exam is an essential certification for developers who want to demonstrate their expertise in JavaScript development in the Salesforce platform. Passing JavaScript-Developer-I exam not only validates the candidate's skills and knowledge but also opens up new career opportunities in the Salesforce ecosystem. Candidates who pursue this certification will gain valuable experience and knowledge that will help them succeed in their careers as Salesforce developers.

Salesforce Certified JavaScript Developer (JS-Dev-101) Sample Questions (Q10-Q15):

NEW QUESTION # 10
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 myFunction(true) is called?

A. 2 2 1 2
B. 2 2 1 1
C. 2 2 2 2
D. 2 2 undefined undefined

Answer: A

NEW QUESTION # 11
Refer to the code:

Given the code above, which three properties are set pet1?
Choose 3 answers:

A. Owner
B. Type
C. canTalk
D. Size
E. Name

Answer: B,C,D

NEW QUESTION # 12
A developer is leading the creation of a new browser application that will serve a single page application. The team wants to use a new web framework Minimalsit.js. The Lead developer wants to advocate for a more seasoned web framework that already has a community around it.
Which two frameworks should the lead developer advocate for?
Choose 2 answers

A. Angular
B. Express
C. Vue
D. Koa

Answer: A,B

NEW QUESTION # 13
A developer creates a generic function 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?

A. Assert
B. Message
C. Info
D. Log
E. Error

Answer: A,C,D

NEW QUESTION # 14
developer creates a new web server that uses Node.js. It imports a server library that uses events and callbacks for handling server functionality.
The server library is imported with require and is made available to the code by a variable named server. The developer wants to log any issues that the server has while booting up.
Given the code and the information thedeveloper has, which code logs an error at boost with an event?

A. Server.error ((server) => {console.log('ERROR', error);});
B. Try{server.start();} catch(error) {console.log('ERROR', error);}
C. Server.on ('error', (error) => {console.log('ERROR', error);});
D. Server.catch ((server) => {console.log('ERROR', error);});

Answer: C

NEW QUESTION # 15
......

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