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Last Updated: Aug 01, 2026
No. of Questions: 149 Questions & Answers with Testing Engine
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The price of the Salesforce JavaScript Developer I certification is $200 USD, for more information related to the Salesforce JavaScript-Developer-I Exam please visit Salesforce website.
Reference: https://trailheadacademy.salesforce.com/certificate/exam-javascript-dev---JS-Dev-101
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How to Prepare for Salesforce JavaScript Developer I Exam
Preparation Guide for Salesforce JavaScript Developer I Exam
Introduction
Salesforce is a solution for managing customer relationships that unite customers and companies. This is an interactive CRM platform that provides a single, shared view of every client in all the divisions including marketing, distribution, exchange, and operation. Provide the clients with the individual experience Salesforce demand 360 product via the Integrated CRM Platform. It delivers solid and related goods to boost marketing, revenue, exchange, operation, IT, and more. Salesforce is a digital cloud computing (SaaS) firm specializing in the management of client relationships (CRMs). There was a mistake. The app is now the number one of consumer satisfaction and allows organizations to track customer behavior, advertise to consumers, and more. Salesforce is common because it is bundled with features such as contact management, workflow development, task management, incentive monitoring, teamwork tools, customer experience tools, analytics, and interactive, smartphone dashboard.
Salesforce JavaScript-Developer-I Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Debugging and Error Handling | 7% | - Debugging tools and breakpoints - Error types and exception handling - Console methods and logging - Defensive programming practices |
| Topic 2: Variables, Types, and Collections | 23% | - Array methods and data manipulation - Working with strings, numbers, dates, and booleans - JSON parsing and usage - Truthy and falsy values - Type coercion and conversion rules - Variable declaration and initialization |
| Topic 3: Browsers and Events | 17% | - Event handling, propagation, and delegation - Document Object Model (DOM) manipulation - Browser APIs and Web Storage - Script loading and execution order - Window and document object properties |
| Topic 4: Asynchronous Programming | 13% | - Async/await syntax - Promises and chaining - Event loop and micro/macro tasks - Fetch API and HTTP requests - Callbacks and callback hell |
| Topic 5: Testing | 7% | - Unit testing concepts - Test doubles and mocks - Code coverage and best practices - Testing frameworks and assertions |
| Topic 6: Objects, Functions, and Classes | 25% | - Object creation, properties, and methods - Class syntax, inheritance, and prototypes - Function definitions, parameters, and scope - Modules and imports/exports - Decorators and advanced function patterns - Closures and execution context |
| Topic 7: Server-Side JavaScript | 8% | - Command-line tools and scripts - Core Node.js modules - Module system and require/import - Node.js fundamentals and runtime |
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