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Walking into your 2026 CRT-600 exam unprepared for the interface and the clock is a risk you don't need to take. The Actual4Labs test engines recreate the Salesforce Certified JavaScript Developer I exam environment, complete with a built-in timer and 225 practice questions. Practice under real conditions, and the actual exam will feel like just another rehearsal.
| Certification Vendor: | Salesforce |
|---|---|
| Exam Name: | Salesforce Certified JavaScript Developer I |
| Exam Number: | CRT-600 |
| Real Exam Qty: | 60 |
| Exam Price: | USD 200 |
| Certificate Validity Period: | Annual maintenance required |
| Related Certifications: | Lightning Web Components Specialist Superbadge |
| Available Languages: | English |
| Passing Score: | 65% |
| Exam Duration: | 105 minutes |
| Exam Format: | Multiple choice, Multiple select |
| Sample Questions: | DOWNLOAD DEMO |
| 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 |
| Section | Weight | Objectives |
|---|---|---|
| Variables, Types, and Collections | 23% | - JSON manipulation - Arrays and collections - Variables and initialization - Type coercion & conversion |
| Browser and Events | 17% | - Event handling - Browser dev tools - DOM manipulation |
| Debugging and Error Handling | 7% | - Error throwing & catching - Console and breakpoint debugging |
| Server-side JavaScript | 8% | - Node.js CLI & libraries - npm basics |
| Objects, Functions, and Classes | 25% | - Class declaration & usage - Function definitions & usage - Object creation & prototypes - Modules |
| Testing | 7% | - Testing fundamentals - Assertions and types of tests |
| Asynchronous Programming | 13% | - Promises - Async/await - Callback functions |
The CRT-600 exam is the official test behind the Salesforce Certified certification, a Specialist-level credential from Salesforce. Passing it validates the skills measured by the Salesforce Certified JavaScript Developer I objectives and proves to employers that you can apply those skills in real-world scenarios, not just recite theory. The credential also sits alongside related certifications such as Lightning Web Components Specialist Superbadge, making it a strong building block in a broader Salesforce certification path. For candidates planning a longer-term career move, the CRT-600 exam is often the step that turns study effort into a verifiable, resumé-ready qualification.
The Salesforce Certified JavaScript Developer I blueprint is divided into 7 exam domains. The first three are Objects, Functions, and Classes (25%), Variables, Types, and Collections (23%), and Server-side JavaScript (8%). The weightings matter: they tell you where the bulk of your score comes from, so allocate study time in proportion rather than spreading it evenly. Scroll back to the exam topics section above for the complete domain-by-domain breakdown of the CRT-600 exam.
The Salesforce Certified JavaScript Developer I exam gives you 105 minutes to work through 60 questions. Do the math before test day: divide the total time by the question count to set a steady per-question pace, and treat that number as a hard budget rather than a guideline. When a question eats more than its share, flag it and move on — a flagged question can be revisited, but lost minutes can't. Running two or three full timed mock exams in the Actual4Labs test engine before your exam date is the most reliable way to make that pacing automatic.
The passing score for the Salesforce Certified JavaScript Developer I exam is 65%, and the official registration fee is USD 200. Keep in mind that a failed attempt means paying that fee in full again — there are no discounted retakes — so booking the exam before you're ready is the most expensive shortcut in certification. A practical rule: take a timed self-assessment with Actual4Labs practice tests first, and only schedule your seat once you're scoring comfortably above the passing mark with time to spare. That buffer absorbs exam-day nerves and the handful of questions that always seem to come from nowhere.
According to Salesforce, the Salesforce Certified JavaScript Developer I exam uses the following question formats: Multiple choice, Multiple select. Different formats reward different habits. For scenario-based items, read the final sentence of the question stem first so you know what's actually being asked before you dig into the details, and never change an answer unless you can point to the exact clue you missed. The Actual4Labs question bank lets you rehearse every format until each one feels routine.
Salesforce currently offers the CRT-600 exam in English. Choose the language you can reason in fastest under time pressure — reading speed matters more than most candidates expect. If you plan to test in English, working through Actual4Labs's 225 English practice questions doubles as terminology training, so the phrasing on exam day feels familiar rather than foreign.
The credential you earn by passing the Salesforce Certified JavaScript Developer I exam remains valid for Annual maintenance required. That clock is worth protecting: set a reminder well before the expiry date and review the official recertification options early, so staying certified becomes a planned task instead of a last-minute scramble. Recertification policies are set by Salesforce and can change, so confirm the current rules on the official certification page.
Every Salesforce Certified JavaScript Developer I product contains the same 225 expert-prepared practice questions; only the way you study with them changes:
Many candidates combine the PDF for daily reading with a test engine for timed weekend mock exams.
Yes. Actual4Labs offers a free PDF demo for the Salesforce Certified JavaScript Developer I exam, so you can review the question style, difficulty level, and answer quality before you pay anything. Every purchase also includes 365 days of free updates — and if you'd like to extend updates after that period, you can renew at a 50% discount from your member zone. Trying first costs you nothing; it simply tells you whether our material matches the way you learn.
Salesforce adjusts its exams over time, so Actual4Labs reviews and updates the Salesforce Certified JavaScript Developer I question bank on a continuous basis to reflect the current skills being tested. Your purchase includes 365 days of free updates; after that, you can repurchase the expired product at a 50% discount from your member zone. To catch a fresh release, check the New Releases section on Actual4Labs, the status on your product's download page, or the Actual4Labs newsletter — and always look for an update a few days before your exam date.
Yes. Actual4Labs is protected by McAfee security services, so your transactions and personal data stay safe throughout the purchase process. We never share customer information with third parties — the only emails you receive come from us, and you can ask to be removed from our mailing list at any time.
Actual4Labs backs your purchase with a 100% Money Back Guarantee: if you take the corresponding exam within 60 days of your purchase and don't pass, you can apply for a full refund. To qualify, submit a scanned copy of your exam enrollment slip and the official Score Report PDF within 2 days after the exam — refunds are processed within 7 days of submission. Attempts made within 3 days of purchase, material for exams never actually taken, free items, and expired orders are not eligible, and the candidate name must match the payer name. Prefer new material instead of a refund? You can exchange your product for two free exam products of equal value and keep the update service on your original purchase. Delivery itself is instant: your Salesforce Certified JavaScript Developer I practice questions are available for download and emailed to you within one minute of payment — if nothing arrives within 2 hours, check your spam folder and contact our support team. There's no limit on how many computers you can install the product on.
One purchase covers the whole journey: a free demo to start, instant delivery when you buy, and a full year of updates while you study. Your CRT-600 product arrives in your mailbox within one minute of payment — if it doesn't show up within 2 hours, our support team will sort it out — and you can install it on as many computers as you need. McAfee security services protect every transaction, and your personal information is never shared with third parties.
Ready when you are: download the free CRT-600 demo, pick the format that fits your routine, and start working through 225 practice questions today.
Question 1
A developer is setting up a Node,js server and is creating a script at the root of the source code, index,js, that will start the server when executed. The developer declares a variable that needs the folder location that the code executes from.
Which global variable can be used in the script?
A. window.location
B. this.path
C. _dirname
D. _filename
Question 2
Which option is true about the strict mode in imported modules?
A. You can only reference notStrict() functions from the imported module.
B. Imported modules are in strict mode whether you declare them as such or not.
C. Add the statement use non-strict, before any other statements in the module to enable not-strict mode.
D. Add the statement use strict =false; before any other statements in the module to enable not- strict mode.
Question 3
Which javascript methods can be used to serialize an object into a string and deserialize a JSON string into an object, respectively?
A. JSON.stringify and JSON.parse
B. JSON.serialize and JSON.deserialize
C. JSON.encode and JSON.decode
D. JSON.parse and JSON.deserialize
Question 4
Refer to the code below:
What is the result when the Promise in the execute function is rejected?
A. Rejected Resolved
B. Rejected1 Rejected2 Rejected3 Rejected Rejected Rejected4
C. Rejected
D. Resolved1 Resolved2 Resolved3 Resolved4
Question 5
Refer to the following code that performs a basic mathematical operation on a provided input:
function calculate(num) {
Return (num +10) / 3;
}
How should line 02 be written to ensure that x evaluates to 6 in the line below?
Let x = calculate (8);
A. Return (Number (num +10 ) / 3;
B. Return Number((num +10) /3 );
C. Return Integer(num +10) /3;
D. Return Number(num + 10) / 3;
Solutions:
| Question 1 Answer: D | Question 2 Answer: A | Question 3 Answer: A | Question 4 Answer: A | Question 5 Answer: A |
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