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How to Study the Salesforce JavaScript-Developer-I Exam
The best study material one can get is the JavaScript-Developer-I practice exam dumps. To ensure good grades, do attempt the JavaScript-Developer-I practice exams. The JavaScript Developer I from Salesforce typically has 1-2 years of experience as a JavaScript developer with the following JavaScript topics.
Monitor (agnostic platform)
Discharge
Item Model Document
Objects & Arrays: Data Structures
Asynchronous Programming
Control of Mistake
Modules
Forms of data and operators
Activities
Strings
JavaScript on the backend
Classes
Scope of Variables
Functions (more functions in higher order)
Conversion type (inclusive versus explicit)
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.
Reference: https://trailheadacademy.salesforce.com/certificate/exam-javascript-dev---JS-Dev-101
Who should take the Salesforce JavaScript-Developer-I Exam
This course is designed for Javascript developers starting on the Salesforce platform who require programming customizations on front-end and back-end. There are no prerequisites for Salesforce JavaScript Developer I Exam. Typical job roles that align to the Salesforce Certified JavaScript Developer I are as follows:
- JavaScript programmer
- Front end developer
- Support engineer
- Technical Project Manager
- Technical Product Manager
- Full stack developer
- Software/backend developer
- Web application developer
- Salesforce developer
- UI/UX Engineer
Salesforce JavaScript-Developer-I Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Variables, Types, and Collections | 23% | - Working with strings, numbers, dates, and booleans - Type coercion and conversion rules - Variable declaration and initialization - Truthy and falsy values - Array methods and data manipulation - JSON parsing and usage |
| Topic 2: Server-Side JavaScript | 8% | - Command-line tools and scripts - Module system and require/import - Core Node.js modules - Node.js fundamentals and runtime |
| Topic 3: Testing | 7% | - Unit testing concepts - Test doubles and mocks - Code coverage and best practices - Testing frameworks and assertions |
| Topic 4: Asynchronous Programming | 13% | - Event loop and micro/macro tasks - Fetch API and HTTP requests - Callbacks and callback hell - Promises and chaining - Async/await syntax |
| Topic 5: Browsers and Events | 17% | - Event handling, propagation, and delegation - Browser APIs and Web Storage - Document Object Model (DOM) manipulation - Script loading and execution order - Window and document object properties |
| Topic 6: Objects, Functions, and Classes | 25% | - Modules and imports/exports - Class syntax, inheritance, and prototypes - Function definitions, parameters, and scope - Closures and execution context - Decorators and advanced function patterns - Object creation, properties, and methods |
| Topic 7: Debugging and Error Handling | 7% | - Debugging tools and breakpoints - Defensive programming practices - Console methods and logging - Error types and exception handling |
