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Reference: https://trailheadacademy.salesforce.com/certificate/exam-javascript-dev---JS-Dev-101
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Salesforce JavaScript Developer I Certification Path
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Self-paced sessions are also offered. This training mode involves pre-recorded video sessions. You can conveniently return to these talks and revisit the subjects you have skipped whether you have any difficulties with the lectures or have difficulty keeping up with the online meetings. You will also use these sessions to finish your exercise at your speed while you access these online lessons throughout your life.
What is the duration, language, and format of Salesforce JavaScript-Developer-I Exam
- There is a time limit of 105 minutes for the exam.
- The type of questions is Multiple Choice and situation-based questions.
- Passing score 65%
- This exam is offered in only English.
- This exam consists of 60 questions
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Conversion type (inclusive versus explicit)
Asynchronous Programming
Monitor (agnostic platform)
JavaScript on the backend
Modules
Item Model Document
Forms of data and operators
Discharge
Classes
Scope of Variables
Objects & Arrays: Data Structures
Control of Mistake
Activities
Strings
Functions (more functions in higher order)
To prepare for this test, we advise a combination of practical experience, completion of training courses, pathways and self-study in the areas listed in the examination outline section of this examination guide.
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Salesforce JavaScript-Developer-I Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Testing | 7% | - Writing and modifying unit tests - Test coverage and reliability - Test effectiveness evaluation - Unit testing concepts |
| Topic 2: Server Side JavaScript | 8% | - Package management (npm) - CLI commands - Node.js fundamentals - Core Node.js modules - Server-side JavaScript implementations |
| Topic 3: Objects, Functions, and Classes | 25% | - Object creation and manipulation - Variable scope and closures - Execution flow and context - ES6 classes and inheritance - Higher-order functions - Arrow functions - Function declarations and expressions - Modules and decorators - Prototypal inheritance |
| Topic 4: Browser and Events | 17% | - Interacting with forms and user input - DOM manipulation - Browser-specific APIs - Event handling and listeners - Browser Developer Tools usage - Event propagation (bubbling and capturing) |
| Topic 5: Debugging and Error Handling | 7% | - Error handling techniques (try/catch/finally) - Custom error types - Breakpoints and code inspection - Console methods for debugging |
| Topic 6: Variables, Types, and Collections | 23% | - Type coercion and conversion - Strings, numbers, and dates - Variable declarations and initialization - Truthy and falsy evaluations - Primitive and complex data types - JSON parsing and manipulation - Arrays and collections |
| Topic 7: Asynchronous Programming | 13% | - Promises (creation, chaining, error handling) - Event loop and execution flow - Callbacks - Asynchronous patterns for business requirements - Async/Await syntax |




