Exam Name: Salesforce Certified JavaScript Developer I
Certification Provider: Salesforce
Corresponding Certification: Salesforce Certified
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Bad exam habits are easiest to fix before exam day. The ExamPrepAway simulation test for the CRT-600 exam reproduces the real atmosphere — timing, pressure, flow — so you can identify what hurts your performance and correct it through repeated, targeted practice.
Salesforce CRT-600 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Objects, Functions, and Classes | 25% | - Define functions, scope, and closures - Create and manipulate objects - Implement classes, inheritance, and modules |
| Topic 2: Asynchronous Programming | 15% | - Fetch API and HTTP requests - Callbacks, promises, and async/await - Timers and event loop |
| Topic 3: Browser and Events | 17% | - Browser APIs and development tools - Event handling and propagation - DOM manipulation and traversal |
| Topic 4: Variables, Types, and Collections | 23% | - Work with arrays, sets, maps, and JSON - Use primitive and reference data types - Declare and initialize variables |
| Topic 5: Server-Side JavaScript | 8% | - Use Node.js core APIs - Node.js basics and modules |
| Topic 6: Debugging and Testing | 12% | - Write and run unit tests - Code quality and linting - Error handling and debugging techniques |
Common Questions About Preparing for the Salesforce Certified JavaScript Developer I Exam
The CRT-600 exam is a Salesforce certification exam that validates the skills defined in the Salesforce Certified JavaScript Developer I syllabus above. It forms part of these credential paths: Salesforce Certified Platform Developer I, Salesforce Certified B2C Commerce Developer. In an economy where certified skills carry growing weight, this credential is one of the clearest ways to demonstrate professional capability in 2026. ExamPrepAway prepares you with 225 practice questions in PDF, Desktop Test Engine, and Online Test Engine formats.
Salesforce recommends the following training for the Salesforce Certified JavaScript Developer I exam:
Follow the training with repeated self-testing — the 225 practice questions from ExamPrepAway let you rehearse each topic as often as needed until it holds.
The written refund policy applies: take the Salesforce Certified JavaScript Developer I exam within 60 days of purchase, and if you do not pass, ExamPrepAway refunds you in full. The policy does not apply if the exam is taken within 3 days of purchase, if the exam was never actually taken, or to free materials or expired orders, and the candidate name must match the payer name. Submit a scan of your enrollment slip and the official Score Report PDF within 2 days of the exam; claims are processed within 7 days. You may instead exchange for two free exam products of equal value and keep your original update service. Delivery is by email within 1 minute of purchase — contact support if nothing arrives within 2 hours.
You pass the Salesforce Certified JavaScript Developer I exam at 68%, and registration costs USD 200 (plus tax; retake USD 100). Since retakes cost the full fee again, repeated simulation runs with the ExamPrepAway engines are the economical way to confirm readiness first.
Online proctored or onsite at Pearson VUE test centers Register for the Salesforce Certified JavaScript Developer I exam via these official channels:
Once booked, your ExamPrepAway practice questions — delivered within 1 minute of purchase — let preparation begin the same day.
Three versions of the 225 practice questions for the Salesforce Certified JavaScript Developer I exam: a printable, expert-prepared PDF with instant download; a Desktop Test Engine for Windows whose simulation test reproduces the real exam atmosphere — repeatable as many times as you like, with two practice modes and offline access; and an Online Test Engine for any browser on Windows, Mac, Android, and iOS with test history and performance review. Included as well: a free demo, 365 days of free updates, a 50% renewal discount afterward, unlimited computer installations, and 24/7 online after-sales service.
No mandatory prerequisites; recommended 1–2 years of JavaScript development experience Requirements are revised from time to time, so verify the latest on the official Salesforce exam page before scheduling.
The Salesforce Certified JavaScript Developer I exam consists of 60 + up to 5 unscored items within 105 minutes. The ExamPrepAway simulation test runs under the same conditions, so you can get accustomed to the atmosphere and work out any pacing habits before they cost you points.
Per the official outline, the Salesforce Certified JavaScript Developer I exam covers 6 domains, led by Variables, Types, and Collections (23%), Browser and Events (17%), and Server-Side JavaScript (8%). The complete list appears in the topics section above; the 225 practice questions at ExamPrepAway span every domain.
Salesforce Certified JavaScript Developer I Sample Questions:
A developer at Universal Containers creates a new landing page based on HTML, CSS, and JavaScript TO ensure that visitors have a good experience, a script named personaliseContext needs to be executed when the webpage is fully loaded (HTML content and all related files ), in order to do some custom initialization.
Which statement should be used to call personalizeWebsiteContent based on the above business requirement?
- A. document.addEventListener(''onDOMContextLoaded', personalizeWebsiteContext);
- B. window.addEventListener('load',personalizeWebsiteContext);
- C. Document.addEventListener('''DOMContextLoaded' , personalizeWebsiteContext);
- D. window.addEventListener('onload', personalizeWebsiteContext);
Correct Answer: B 🗳️
Refer to following code:
class Vehicle {
constructor(plate) {
This.plate =plate;
}
}
Class Truck extends Vehicle {
constructor(plate, weight) {
//Missing code
This.weight = weight;
}
displayWeight() {
console.log('The truck ${this.plate} has a weight of ${this.weight} lb.');}} Let myTruck = new Truck('123AB', 5000); myTruck.displayWeight(); Which statement should be added to line 09 for the code to display 'The truck 123AB has a weight of 5000lb.'?
- A. Super.plate =plate;
- B. super(plate);
- C. Vehicle.plate = plate;
- D. This.plate =plate;
Correct Answer: B 🗳️
Refer to code below:
function Person() {
this.firstName = 'John';
}
Person.prototype ={
Job: x => 'Developer'
};
const myFather = new Person();
const result =myFather.firstName + ' ' + myFather.job();
What is the value of the result after line 10 executes?
- A. Undefined Developer
- B. John undefined
- C. John Developer
- D. Error: myFather.job is not a function
Correct Answer: C 🗳️
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. Koa
- B. Angular
- C. Express
- D. Vue
Correct Answer: B,C 🗳️
There is a new requirement for a developer to implement a currPrice method that will return the current price of the item or sales..
What is the output when executing the code above
- A. 50
80
Uncaught Reference Error:this,discount is undefined
72 - B. 50
Uncaught TypeError: saleItem,desrcription is not a function
50
80 - C. 50
80
72 - D. 50
80
50
72
Correct Answer: D 🗳️
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