Trust is earned, so Actual4Exams hands over the evidence first. A free demo of the Salesforce Certified JavaScript Developer I material lets you interrogate real CRT-600 questions and answers before your wallet gets involved.
Salesforce CRT-600 Exam Overview:
| Certification Vendor: | Salesforce |
|---|---|
| Exam Name: | Salesforce Certified JavaScript Developer I |
| Exam Number: | CRT-600 |
| Real Exam Qty: | 60 |
| Available Languages: | English |
| Exam Price: | USD 200 |
| Related Certifications: | Lightning Web Components Specialist Superbadge |
| Exam Duration: | 105 minutes |
| Certificate Validity Period: | Annual maintenance required |
| Passing Score: | 65% |
| Exam Format: | Multiple select, Multiple choice |
| 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: Asynchronous Programming | 13% | - Async/await - Promises - Callback functions |
| Topic 2: Objects, Functions, and Classes | 25% | - Modules - Class declaration & usage - Object creation & prototypes - Function definitions & usage |
| Topic 3: Variables, Types, and Collections | 23% | - JSON manipulation - Arrays and collections - Variables and initialization - Type coercion & conversion |
| Topic 4: Testing | 7% | - Assertions and types of tests - Testing fundamentals |
| Topic 5: Debugging and Error Handling | 7% | - Error throwing & catching - Console and breakpoint debugging |
| Topic 6: Server-side JavaScript | 8% | - npm basics - Node.js CLI & libraries |
| Topic 7: Browser and Events | 17% | - Browser dev tools - DOM manipulation - Event handling |
FAQ: Preparing for Salesforce Certified JavaScript Developer I the Smart Way
Salesforce Certified JavaScript Developer I is an official exam run by Salesforce under exam code CRT-600. Passing it awards the Salesforce Certified certification, which sits at the Specialist tier. It also counts toward related credentials such as Lightning Web Components Specialist Superbadge. Certified professionals remain in shorter supply than the market wants, which is precisely why this exam keeps showing up in conversations about better roles and better pay.
The Salesforce Certified JavaScript Developer I exam gives you 105 minutes to work through 60 questions. That is a tight ratio, and it punishes candidates who get emotionally attached to any single item. The fix is mechanical: answer what you know, flag what you do not, and keep moving. A few full-length timed runs in the Actual4Exams test engine, with its randomized question order, will calibrate your pace far better than untimed reading ever could.
The official fee for Salesforce Certified JavaScript Developer I is USD 200, and 65% is what passing takes. The uncomfortable part: retakes cost the full USD 200 again, which makes preparation the cheapest line item in this whole project. Before booking, put yourself through repeated scored sessions with the Actual4Exams practice tests and compare results over time; a stable margin above the passing line, not a single lucky run, is when you are ready.
None (recommended 1-2 years JavaScript experience)
Vendor rules do get revised, so treat this as your starting point and confirm the current eligibility details before booking via the official exam page.
It is. Actual4Exams publishes a free PDF demo of the Salesforce Certified JavaScript Developer I material, so the product can prove itself before you pay. Your purchase then comes with 365 days of free updates, and once that period ends, extending the update service costs 50% of the regular price. The test engine software itself is verified malware-free and safe to install.
Actual4Exams stands behind the product with a 100% money-back guarantee under defined conditions. If you take the Salesforce Certified JavaScript Developer I exam within 60 days of purchase and fail, you qualify for a full refund, provided the exam corresponds to your product. Sitting the exam within 3 days of purchase does not qualify, and neither do unused downloads, free materials, or expired orders; the candidate name must match the payer name. Submit a scanned enrollment slip and the official Score Report PDF within 2 days of the exam, and claims are resolved within 7 days. You may also choose an exchange instead of a refund: two other exam products of equal value, free, with the update service on your original purchase retained.
Delivery takes about a minute. Files unlock for instant download at payment and are emailed to you automatically; if 2 hours pass with nothing received, check spam and contact customer service. There is no installation limit, so the test engine can live on every device you own, phone included.
Salesforce Certified JavaScript Developer I breaks down into 7 official domains, led by Debugging and Error Handling (7%), Objects, Functions, and Classes (25%), and Variables, Types, and Collections (23%). You will find the full topic-by-topic outline above on this page; use the weightings to budget your study hours where they pay back the most.
Salesforce Certified JavaScript Developer I Sample Questions:
Given the JavaScript below:
01 function filterDOM (searchString) {
02 const parsedSearchString = searchString && searchString.toLowerCase() ;
03 document.quesrySelectorAll(' .account' ) . forEach(account => (
04 const accountName = account.innerHTML.toLOwerCase();
05 account. Style.display = accountName.includes(parsedSearchString) ? /*Insert code*/;
06 )};
07 }
Which code should replace the placeholder comment on line 05 to hide accounts that do not match the search string?
- A. ' visible ' : ' hidden '
- B. ' Block ' : ' none '
- C. ' name ' : ' block '
- D. ' hidden ' : ' visible '
Correct Answer: B 🗳️
Refer to the following array:
Let arr = [ 1,2, 3, 4, 5];
Which three options result in x evaluating as [3, 4, 5] ?
Choose 3 answers.
- A. Let x = arr.slice(2,3);
- B. Let x= arr.filter (( a) => (a<2));
- C. Let x= arr.slice(2);
- D. Let x= arr.splice(2,3);
- E. Let x= arr.filter((a) => ( return a>2 ));
Correct Answer: C,D,E 🗳️
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 .padEnd (16. '0').padstart('sku');
- C. productSKU = productSKU .padStart (19. '0').padstart('sku');
- D. productSKU = productSKU .padEnd (16. '0').padstart(19, 'sku');
Correct Answer: A 🗳️
A class was written to represent items for purchase in an online store, and a second class Representing items that are on sale at a discounted price. THe constructor sets the name to the first value passed in. The pseudocode is below:
Class Item {
constructor(name, price) {
... // Constructor Implementation
}
}
Class SaleItem extends Item {
constructor (name, price, discount) {
...//Constructor Implementation
}
}
There is a new requirement for a developer to implement a description method that will return a brief description for Item and SaleItem.
Let regItem =new Item('Scarf', 55);
Let saleItem = new SaleItem('Shirt' 80, -1);
Item.prototype.description = function () { return 'This is a ' + this.name; console.log(regItem.description()); console.log(saleItem.description()); SaleItem.prototype.description = function () { return 'This is a discounted ' + this.name; } console.log(regItem.description()); console.log(saleItem.description()); What is the output when executing the code above ?
- A. This is aScarf
Uncaught TypeError: saleItem.description is not a function
This is a Shirt
This is a did counted Shirt - B. This is a Scarf
This is a Shirt
This is a Scarf
This is a discounted Shirt - C. This is a Scarf
Uncaught TypeError: saleItem.description is not a function
This is aScarf
This is a discounted Shirt - D. This is a Scarf
This is a Shirt
This is a discounted Scarf
This is a discounted Shirt
Correct Answer: B 🗳️
myArraym can have one level, two levels, or more levels.
Which statement flattens myArray when it can be arbitrarily nested?
- A. myArray.flat(Infinity);
- B. myArray. reduce ((prev, curr) => prev.concat(curr) [ ]);
- C. [ ] .concat {. . .myArray) ;
- D. myArray. join (","). split (",");
Correct Answer: B 🗳️
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We still understand the effort, time, and money you will invest in preparing for your certification exam, which makes failure in the Salesforce CRT-600 exam really painful and disappointing. Although we cannot reduce your pain and disappointment but we can certainly share with you the financial loss.
This means that if due to any reason you are not able to pass the CRT-600 actual exam even after using our product, we will reimburse the full amount you spent on our products. you just need to mail us your score report along with your account information to address listed below within 7 days after your unqualified certificate came out.
