Nice CRT-600 Salesforce training.
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Salesforce CRT-600 : Salesforce Certified JavaScript Developer I
- Exam Code: CRT-600
- Exam Name: Salesforce Certified JavaScript Developer I
- Updated: Nov 07, 2026
- Q & A: 225 Questions and Answers
About Salesforce CRT-600 Exam Questions
Choosing study materials by taste is legitimate — you will spend weeks inside them. BraindumpsPrep lets you sample first: download the free demo of the CRT-600 package and experience the 225 practice questions' style before deciding.
Salesforce CRT-600 Exam Overview:
| Certification Vendor: | Salesforce |
|---|---|
| Exam Name: | Salesforce Certified JavaScript Developer I |
| Exam Number: | CRT-600 |
| Certificate Validity Period: | Annual maintenance required |
| Exam Price: | USD 200 |
| Related Certifications: | Lightning Web Components Specialist Superbadge |
| Real Exam Qty: | 60 |
| Available Languages: | English |
| Exam Format: | Multiple choice, Multiple select |
| Passing Score: | 65% |
| Exam Duration: | 105 minutes |
| Sample Questions: |  |
| Exam Way: | Proctored onsite or online via Pearson VUE |
| Pre Condition: | None (recommended 1-2 years JavaScript experience) |
| Official Syllabus URL: | https://trailhead.salesforce.com/en/credentials/javascriptdeveloperi |
Salesforce CRT-600 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Testing | 7% | - Assertions and types of tests - Testing fundamentals |
| Topic 2: Variables, Types, and Collections | 23% | - JSON manipulation - Arrays and collections - Variables and initialization - Type coercion & conversion |
| Topic 3: Browser and Events | 17% | - Event handling - DOM manipulation - Browser dev tools |
| Topic 4: Objects, Functions, and Classes | 25% | - Object creation & prototypes - Function definitions & usage - Modules - Class declaration & usage |
| Topic 5: Asynchronous Programming | 13% | - Async/await - Callback functions - Promises |
| Topic 6: Server-side JavaScript | 8% | - Node.js CLI & libraries - npm basics |
| Topic 7: Debugging and Error Handling | 7% | - Error throwing & catching - Console and breakpoint debugging |
CRT-600 Exam: Your Questions, Answered
None (recommended 1-2 years JavaScript experience) Since requirements change over time, confirm the latest on the official Salesforce exam page before scheduling.
Salesforce recommends these training resources for the Salesforce Certified JavaScript Developer I exam:
Follow the training with steady self-testing — the 225 practice questions from BraindumpsPrep make that routine easy to maintain.
BraindumpsPrep issues a full refund if you take the Salesforce Certified JavaScript Developer I exam within 60 days of purchase and do not pass. 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. Alternatively, exchange for two free exam products of equal value and keep your original update service. Orders arrive by email within 1 minute — contact support if nothing arrives within 2 hours.
The official Salesforce Certified JavaScript Developer I outline defines 7 domains. The leading three are Objects, Functions, and Classes (25%), Debugging and Error Handling (7%), and Asynchronous Programming (13%). The full list is in the topics section above, and BraindumpsPrep's 225 practice questions cover each one.
The CRT-600 exam is a Salesforce certification exam validating the Salesforce Certified JavaScript Developer I syllabus shown above. It belongs to these credential paths: Lightning Web Components Specialist Superbadge. Candidates of different ages and backgrounds take it to advance their careers in 2026, and BraindumpsPrep prepares all of them with 225 practice questions in PDF, Desktop Test Engine, and Online Test Engine formats.
Three versions of the 225 practice questions for the Salesforce Certified JavaScript Developer I exam, each with its own strengths: a printable, expert-prepared PDF with instant download and free demo; a Desktop Test Engine for Windows that simulates the real exam with two practice modes and works offline; and an Online Test Engine for any browser on Windows, Mac, Android, and iOS with test history and performance review. Choose whichever suits your taste — all are included, along with 365 days of free updates, a 50% renewal discount afterward, and unlimited computer installations.
The Salesforce Certified JavaScript Developer I exam requires 65% to pass, and registration costs USD 200. Retaking costs the same fee again, so a readiness check with the BraindumpsPrep engines is a sensible investment before booking.
The Salesforce Certified JavaScript Developer I exam contains 60 to complete within 105 minutes. Timed practice in the BraindumpsPrep Desktop Test Engine prepares you for exactly that rhythm.
Proctored onsite or online via Pearson VUE Register for the Salesforce Certified JavaScript Developer I exam through these official channels:
Once booked, your BraindumpsPrep practice questions reach your inbox within 1 minute — the countdown to exam day can start at once.
Salesforce Certified JavaScript Developer I Sample Questions:
Question #1
Refer to the following array:
Let arr = [1, 2, 3, 4, 5];
Which three options result in x evaluating as [1, 2]?
Choose 3 answer
- A. let x = arr. slice (0, 2);
- B. let x = arr.filter ((a) => 2 }) ;
- C. let x arr.filter((a) => (return a <= 2 });
- D. let x = arr. slice (2);
- E. let x =arr.splice(0, 2);
Correct Answer: A,C,E 🗳️
Question #2
Given the code below:
Which three code segments result in a correct conversion from number to string? Choose 3 answers
- A. let strValue = (String)numValue;
- B. let scrValue = String(numValue);
- C. let strValue = numValue. toString();
- D. let strValue = * * 4 numValue;
- E. let strValue = numValue.toText ();
Correct Answer: B,C,D 🗳️
Question #3
Refer to the following code:
function test (val) {
If (val === undefined) {
return 'Undefined values!' ;
}
if (val === null) {
return 'Null value! ';
}
return val;
}
Let x;
test(x);
What is returned by the function call on line 13?
- A. 'Undefined values!'
- B. 'Null value!'
- C. Line 13 throws an error.
- D. Undefined
Correct Answer: A 🗳️
Question #4
Universal Containers (UC) just launched a new landing page, but users complain that the website is slow. A developer found some functions any that might cause this problem. To verify this, the developer decides to execute everything and log the time each of these three suspicious functions consumes.
Which function can the developer use to obtain the time spent by every one of the three functions?
- A. console.timeStamp ()
- B. console.getTime ()
- C. console. timeLog ()
- D. console.trace()
Correct Answer: C 🗳️
Question #5
At Universal Containers, every team has its own way of copying JavaScript objects. The code snippet shows an Implementation from one team:
What is the output of the code execution?
- A. Hello Dan Doe
- B. Hello John Doe
- C. Hello Dan
- D. SyntaxError: Unexpected token in JSON
Correct Answer: D 🗳️
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