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Exam Code: JavaScript-Developer-I Vendor: Salesforce Name: Salesforce Certified JavaScript Developer (JS-Dev-101) 147 Q&A with Explanation Last Update: Jul 31, 2026
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Browse JavaScript-Developer-I Practice Questions by Domain

Every JavaScript-Developer-I question is tagged to its official exam domain, so you can jump straight to the JavaScript-Developer-I topic you need to strengthen instead of working through the set in random order.

1.0
Asynchronous Programming
19 Q&As
2.0
Browser and Events
21 Q&As
3.0
Debugging and Error Handling
13 Q&As
4.0
Objects, Functions, and Classes
34 Q&As
5.0
Server Side JavaScript
17 Q&As
6.0
Testing
7 Q&As
7.0
Variables, Types, and Collections
36 Q&As
JavaScript-Developer-I Exam Topics

Practicing in the Online or Download Engine? Your score is automatically broken down the same way - domain by domain - so you can see exactly where you're strongest and weakest as you go.

JavaScript-Developer-I Q&A's Detail

Exam Code:
JavaScript-Developer-I
Total Questions:
147 Q&A's
Single Choice Questions:
109 Q&A's
Multiple Choice Questions:
38 Q&A's

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