Salesforce CRT-600

Certification exams change, and outdated study material can quietly sabotage your score. Dumpkiller keeps its CRT-600 practice questions aligned with the current Salesforce Certified JavaScript Developer I exam, with free updates for 365 days through 2026 and beyond.

Salesforce CRT-600 Exam Overview:

Salesforce CRT-600 Exam Syllabus Topics:

What Candidates Ask About the Salesforce CRT-600 Exam

Can you give me an overview of the CRT-600 exam?

The Salesforce Certified JavaScript Developer I exam (code: CRT-600) is the official Salesforce exam that leads to the Salesforce Certified JavaScript Developer I certification. It sits at the Developer level of the Salesforce certification track. It is also connected with related credentials such as Salesforce Certified Platform Developer I, Salesforce Certified B2C Commerce Developer. Passing it proves to employers that your skills have been validated by Salesforce itself, which is why the CRT-600 credential keeps showing up in job postings.

How many questions are in the CRT-600 exam, and how long does it take?

The Salesforce Certified JavaScript Developer I exam gives you 105 minutes to work through 60 + up to 5 unscored items. Pacing matters more than most candidates expect, so before exam day, run at least one full timed session in the Dumpkiller test engine to learn how long you can afford per question. If an item stalls you, flag it and move on — coming back later beats burning five minutes on a single question.

What score do I need to pass the CRT-600 exam, and how much does it cost?

The passing score for the Salesforce Certified JavaScript Developer I exam is 68%, and the official registration fee is USD 200 (plus tax; retake USD 100). Remember that a failed attempt means paying that fee in full again, so a timed self-assessment with Dumpkiller practice questions about a week before your exam date is a cheap way to confirm you are scoring comfortably above 68%.

Are there any prerequisites for the CRT-600 exam?

According to Salesforce, the following applies: No mandatory prerequisites; recommended 1–2 years of JavaScript development experience. Certification policies do change from time to time, so confirm the latest requirements on the official exam page at https://trailhead.salesforce.com/credentials/certification-javascript-developer-i before you register.

How do I register for the CRT-600 exam?

You can book your Salesforce Certified JavaScript Developer I exam through the official channels below:

• Salesforce Certification Portal
• Pearson VUE Registration

Depending on availability in your region, the exam is delivered as Online proctored or onsite at Pearson VUE test centers.

What official training does Salesforce recommend for the CRT-600 exam?

Salesforce lists the following training options for Salesforce Certified JavaScript Developer I candidates:

• CRT-600 Certification Preparation Course
• Prepare for JavaScript Developer I Trailmix

Official courses build a solid foundation, and pairing them with the 225 practice questions from Dumpkiller shows you how ready you really are before you spend money on the exam itself.

Can I try the CRT-600 practice questions before buying?

Yes. Dumpkiller offers a free CRT-600 PDF demo so you can review the question style, difficulty, and explanations before committing to anything. After purchase, your Salesforce Certified JavaScript Developer I material includes 365 days of free updates, and if your product expires after that, you can extend the update service at a 50% discount from your member zone.

What happens if I do not pass the CRT-600 exam, and how is my order delivered?

If you take the corresponding CRT-600 exam within 60 days of your purchase and do not pass, you can apply for a full refund under our 100% Money Back Guarantee, subject to a few conditions: the failed exam must be the one matching your purchase; sitting the exam within 3 days of purchase does not qualify, since that leaves too little preparation time; downloading the material without actually taking the exam does not qualify; free materials and expired orders are excluded; and the candidate name must match the payer name. To apply, send a scanned copy of your enrollment slip together with your official Score Report (PDF) within 2 days after the exam, and claims are processed within 7 days. If you would rather not take a refund, you can exchange your purchase for two free products of equal value while keeping the update service on the product you originally bought. As for delivery, everything is an instant download: your products are sent to your email within one minute of payment — contact customer service if nothing arrives within 2 hours — and there is no limit on the number of computers you can install the software on.

What topics are covered in the CRT-600 exam?

The official Salesforce Certified JavaScript Developer I syllabus is organized into 6 main domains. The first three are Asynchronous Programming (15%), Objects, Functions, and Classes (25%), and Debugging and Testing (12%). For the full domain-by-domain breakdown, see the complete Exam Topics outline above.

Salesforce Certified JavaScript Developer I Sample Questions:

Question #1
Which code change should be done for the console to log the following when 'Click me!' is clicked'
> Row log
> Table log

A. Change line 10 to event.stopPropagation (false) ;
B. Remove lines 13 and 14
C. Remove line 10
D. Change line 14 to elem.addEventListener ('click', printMessage, true);

Question #2
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
50
72
B. 50
80
72
C. 50
Uncaught TypeError: saleItem,desrcription is not a function
50
80
D. 50
80
Uncaught Reference Error:this,discount is undefined
72

Question #3
Which statement accurately describes an aspect of promises?

A. In a.then() function, returning results is not necessary since callbacks will catch the result of a previous promise.
B. .then() manipulates and returns the original promise.
C. .then() cannot be added after a catch.
D. Arguments for the callback function passed to .then() are optional.

Question #4
Refer of the string below:
Const str = 'sa;esforce'=;
Which two statement result in the word 'Sale'?
Choose 2 answers

A. str, substr(0,5) ;
B. str, substring(1,5) ;
C. str, substring (0,5) ;
D. str, substr(1,5) ;

Question #5
Refer to the code below:
01 let car1 = new promise((_, reject) =>
02 setTimeout(reject, 2000, "Car 1 crashed in"));
03 let car2 = new Promise(resolve => setTimeout(resolve, 1500, "Car 2
completed"));
04 let car3 = new Promise(resolve => setTimeout (resolve, 3000, "Car 3
Completed"));
05 Promise.race([car1, car2, car3])
06 .then(value => (
07 let result = $(value) the race. `;
08 ))
09 .catch( arr => (
10 console.log("Race is cancelled.", err);
11 ));
What is the value of result when Promise.race executes?

A. Car 3 completed the race.
B. Race is cancelled.
C. Car 1 crashed in the race.
D. Car 2 completed the race.

Solutions: