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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.
Item Model Document
Objects & Arrays: Data Structures
Scope of Variables
Functions (more functions in higher order)
JavaScript on the backend
Conversion type (inclusive versus explicit)
Discharge
Asynchronous Programming
Monitor (agnostic platform)
Classes
Activities
Modules
Forms of data and operators
Strings
Control of Mistake
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
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What is the duration, language, and format of Salesforce JavaScript-Developer-I Exam
- The type of questions is Multiple Choice and situation-based questions.
- This exam consists of 60 questions
- Passing score 65%
- There is a time limit of 105 minutes for the exam.
- This exam is offered in only English.
Salesforce JavaScript-Developer-I Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Server-Side JavaScript | 8% | - Core Node.js modules - Command-line tools and scripts - Node.js fundamentals and runtime - Module system and require/import |
| Browsers and Events | 17% | - Document Object Model (DOM) manipulation - Script loading and execution order - Window and document object properties - Browser APIs and Web Storage - Event handling, propagation, and delegation |
| Variables, Types, and Collections | 23% | - Array methods and data manipulation - Type coercion and conversion rules - Truthy and falsy values - JSON parsing and usage - Variable declaration and initialization - Working with strings, numbers, dates, and booleans |
| Testing | 7% | - Testing frameworks and assertions - Unit testing concepts - Code coverage and best practices - Test doubles and mocks |
| Debugging and Error Handling | 7% | - Error types and exception handling - Debugging tools and breakpoints - Console methods and logging - Defensive programming practices |
| Asynchronous Programming | 13% | - Callbacks and callback hell - Event loop and micro/macro tasks - Promises and chaining - Fetch API and HTTP requests - Async/await syntax |
| Objects, Functions, and Classes | 25% | - Object creation, properties, and methods - Function definitions, parameters, and scope - Decorators and advanced function patterns - Class syntax, inheritance, and prototypes - Modules and imports/exports - Closures and execution context |
