Salesforce CRT-600 : Salesforce Certified JavaScript Developer I

CRT-600 real exams

Exam Code: CRT-600

Exam Name: Salesforce Certified JavaScript Developer I

Updated: Sep 24, 2026

Q & A: 225 Questions and Answers

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About Salesforce CRT-600 Exam

A study bundle only helps when it mirrors the real thing, and the Salesforce Certified JavaScript Developer I materials at Prep4cram recreate the CRT-600 exam's format and timing so your practice sessions feel like rehearsal, not guesswork.

Salesforce CRT-600 Exam Overview:

Certification Vendor:Salesforce
Exam Name:Salesforce Certified JavaScript Developer I
Exam Number:CRT-600
Available Languages:Japanese, French, Spanish, English, German
Real Exam Qty:60
Related Certifications:Salesforce Certified JavaScript Developer II
Salesforce Certified Platform Developer I
Exam Duration:105 minutes
Exam Price:$200 USD
Passing Score:65%
Exam Format:Multiple Choice, Multiple Select
Certificate Validity Period:Maintenance required annually via Salesforce certification maintenance modules (no fixed expiration if maintained)
Recommended Training:Platform Developer I Prep
Salesforce Trailhead JavaScript Developer Learning Path
Exam Registration:Salesforce Certification Registration
Pearson VUE Salesforce Exams
Sample Questions:Free Download real CRT-600 prep cram
Exam Way:Online proctored or onsite via Pearson VUE
Pre Condition:No formal prerequisites required, but recommended familiarity with JavaScript and Salesforce Platform Developer I knowledge
Official Syllabus URL:https://trailhead.salesforce.com/credentials/javascript-developer-i

Salesforce CRT-600 Exam Syllabus Topics:

SectionObjectives
Topic 1: Asynchronous JavaScript- API calls and data handling
- Promises and async/await
Topic 2: Debugging, Testing, and Security- Debugging JavaScript in Salesforce environments
- Security best practices (CSP, data handling)
Topic 3: Salesforce Platform Integration- Lightning Web Components (LWC) basics
- Apex integration from JavaScript
Topic 4: DOM Manipulation and Events- Event handling and propagation
- DOM traversal and updates
Topic 5: JavaScript Fundamentals- Objects, arrays, and functions
- Language syntax and core concepts
- ES6+ features

CRT-600 Exam Details, Version Policy and Customer Perks

Use the official registration channel: Salesforce Certification Registration Pearson VUE Salesforce Exams Create an account, choose between a test center and online proctoring, pick your date, and pay the exam fee to confirm.
Two ways. First, the IT staff checks CRT-600 update information every day, and the Salesforce Certified JavaScript Developer I bank on the website is always the current version — if a vendor refresh is ever pending, the team tells you honestly and suggests waiting rather than selling you material that is about to change. Second, you can verify it yourself: download the free demo and compare it against any other version you have seen. That transparency is policy at Prep4cram, not marketing.
Loyalty pays at Prep4cram. After your CRT-600 purchase you receive priority access to holiday discounts and sale coupons. Pass your exam and come back for another subject, and a discount applies to that order too. Companies buying for teams get multi-year arrangements — free updates through the first year and fifty percent off from the second year onward.
Salesforce Trailhead JavaScript Developer Learning Path Platform Developer I Prep Many candidates combine an official course for structured theory with the verified Prep4cram question bank for realistic timed rehearsal.
You will face about 60 questions in 105 minutes minutes. The Prep4cram practice engine mirrors that format and timing, and working through 225 practice questions for the CRT-600 exam makes the real session feel familiar rather than rushed.
Because the fundamentals are solid: 225+ Q&As covering the Salesforce Certified JavaScript Developer I objectives with verified answers, a bank checked daily and sold only in its latest version, support that answers within two hours around the clock, strict privacy protection, and loyalty savings for customers who return. Add the conditional refund policy and the CRT-600 purchase becomes a low-risk, high-support decision.
No formal prerequisites required, but recommended familiarity with JavaScript and Salesforce Platform Developer I knowledge
Passing requires 65%, and a seat costs $200 USD. That fee is due again on every retake, so thorough preparation with verified Prep4cram material is the sensible investment.
The official Salesforce Certified JavaScript Developer I outline assigns its weights like this:
  • Salesforce Platform Integration ()
  • Debugging, Testing, and Security ()
  • Asynchronous JavaScript ()
Budget your hours according to those weights and test each domain with the Prep4cram bank before exam day.

Salesforce Certified JavaScript Developer I Sample Questions:

Question #1

Refer to the code below:
for(let number =2 ; number <= 5 ; number += 1 ) {
// insert code statement here
}
The developer needs to insert a code statement in the location shown. The code statement has these requirements:
1. Does require an import
2. Logs an error when the boolean statement evaluates to false
3. Works in both the browser and Node.js
Which meet the requirements?

  • A. assert (number % 2 === 0);
  • B. console.debug(number % 2 === 0);
  • C. console.assert(number % 2 === 0);
  • D. console.error(number % 2 === 0);
Reveal Solution  Discussion  0

Correct Answer: D  🗳️

Question #2

Refer to the code below:
01 const server = require('server');
02 /* Insert code here */
A developer imports a library that creates a web server. The imported library uses events and callbacks to start the servers Which code should be inserted at the line 03 to set up an event and start the web server ?

  • A. serve(( port) => (
  • B. server.on(' connect ' , ( port) => {
    console.log('Listening on ' , port) ;})
  • C. Server.start ();
  • D. server()
  • E. console.log( 'Listening on ', port) ;
Reveal Solution  Discussion  0

Correct Answer: B  🗳️

Question #3

Given the code below:
01 function GameConsole (name) {
02 this.name = name;
03 }
04
05 GameConsole.prototype.load = function(gamename) {
06 console.log( ` $(this.name) is loading a game : $(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 cartridge game: Super Monic 3x Force . . .

  • A. Console16bit.prototype.load(gamename) {
  • B. Console16bit.prototype.load = function(gamename) {
  • C. Console16bit.prototype.load(gamename) = function() {
  • D. Console16bit = Object.create(GameConsole.prototype).load = function
    (gamename) {
Reveal Solution  Discussion  0

Correct Answer: B  🗳️

Question #4

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. Vue
  • C. Express
  • D. Koa
Reveal Solution  Discussion  0

Correct Answer: A,C  🗳️

Question #5

Refer to code below:
Let productSKU = '8675309' ;
A developer has a requirement to generate SKU numbers that are always 19 characters lon, starting with 'sku', and padded with zeros.
Which statement assigns the values sku0000000008675309 ?

  • A. productSKU = productSKU .padStart (16. '0').padstart(19, 'sku');
  • B. productSKU = productSKU .padStart (19. '0').padstart('sku');
  • C. productSKU = productSKU .padEnd (16. '0').padstart('sku');
  • D. productSKU = productSKU .padEnd (16. '0').padstart(19, 'sku');
Reveal Solution  Discussion  0

Correct Answer: A  🗳️

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