Study with JavaScript-Developer-I日本語 Actual Test Questions
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Updated: Sep 09, 2026
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Salesforce JavaScript Developer I Certification Path
You must get an idea of exactly what this certification is, before investing your valuable time, effort, or money in Salesforce. The demand and the need for Salesforce certified professionals are rapidly growing and so Salesforce JavaScript Developer I Certification is becoming more and more popular. Different types of online training sessions are provided such as Intellipaat 's online training sessions for the Salesforce JavaScript Developer I Qualification . It is instructor-led teaching by subject professionals working in major organizations. This style of training includes live sessions with the teacher, along with a forum where you can clear all your course-based doubts.
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.
Reference: https://trailheadacademy.salesforce.com/certificate/exam-javascript-dev---JS-Dev-101
Salesforce JavaScript-Developer-I日本語 Exam Overview:
| Certification Vendor: | Salesforce |
|---|---|
| Exam Name: | Salesforce Certified JavaScript Developer I |
| Exam Number: | JS-Dev-101 |
| Certificate Validity Period: | None (Credential does not expire) |
| Exam Format: | Multiple-choice, Multiple-select |
| Available Languages: | English |
| Related Certifications: | Salesforce Certified JavaScript Developer I Credential |
| Exam Duration: | 105 minutes |
| Real Exam Qty: | 60 (plus up to 5 unscored pilot questions) |
| Passing Score: | 65% |
| Exam Price: | $200 USD |
| Sample Questions: | Salesforce JavaScript-Developer-I日本語 Sample Questions |
| Exam Way: | Online (proctored via Pearson VUE) or On-site (at a Pearson VUE testing center) |
| Pre Condition: | None required. 1-2 years of JavaScript development experience (front-end and/or back-end) is strongly recommended. Note: To earn the full credential, candidates must also pass the Lightning Web Components Specialist Superbadge in addition to the JS-Dev-101 exam. |
| Official Syllabus URL: | https://trailhead.salesforce.com/en/credentials/javascriptdeveloperi |
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.
Topics of Salesforce JavaScript Developer I Exam
Aspirants must know the exam topics before they start of preparation. Because it will help them to prepare for the below concepts Salesforce JavaScript-Developer-I exam will include the following topics:
1. Variable, Types, and Collection: 23%
Scenario based coding Variables Creation and Initialization JSON object understanding
2. Object, Functions, and Classes: 25%
Implementation of different functions Understanding of different modules of Javascript Scope of variables and their execution flow
3. Browser and Events: 17%
Handling and propagation of events Development tools of browsers Understanding of browser specific APIs
4. Asynchronous Programming: 13%
Asynchrounous programming different concepts Monitoring and management of different loops
5. Server Side Javascript: 8%
Implementation of Node.js Understanding of Node.js CLI commands
6. Testing: 7%
Unit Testing effectiveness of different tests
Salesforce JavaScript-Developer-I日本語 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Testing | 7% | - Unit testing concepts - Writing and modifying unit tests - Test effectiveness evaluation - Test coverage and reliability |
| Browser and Events | 17% | - Browser-specific APIs - DOM manipulation - Event propagation (bubbling and capturing) - Browser Developer Tools usage - Interacting with forms and user input - Event handling and listeners |
| Asynchronous Programming | 13% | - Async/Await syntax - Event loop and execution flow - Promises (creation, chaining, error handling) - Callbacks - Asynchronous patterns for business requirements |
| Server Side JavaScript | 8% | - Core Node.js modules - Server-side JavaScript implementations - Node.js fundamentals - Package management (npm) - CLI commands |
| Objects, Functions, and Classes | 25% | - Function declarations and expressions - Variable scope and closures - Object creation and manipulation - Execution flow and context - Arrow functions - Higher-order functions - Prototypal inheritance - ES6 classes and inheritance - Modules and decorators |
| Variables, Types, and Collections | 23% | - Type coercion and conversion - Arrays and collections - JSON parsing and manipulation - Variable declarations and initialization - Primitive and complex data types - Strings, numbers, and dates - Truthy and falsy evaluations |
| Debugging and Error Handling | 7% | - Error handling techniques (try/catch/finally) - Breakpoints and code inspection - Custom error types - Console methods for debugging |
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