Try and practice the latest Salesforce : JavaScript-Developer-I日本語 real questions & answers
Updated: Sep 09, 2026
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Salesforce JavaScript-Developer-I日本語 Exam Overview:
| Certification Vendor: | Salesforce |
|---|---|
| Exam Name: | Salesforce Certified JavaScript Developer I |
| Exam Number: | JS-Dev-101 |
| Real Exam Qty: | 60 (plus up to 5 unscored pilot questions) |
| Related Certifications: | Salesforce Certified JavaScript Developer I Credential |
| Certificate Validity Period: | None (Credential does not expire) |
| Exam Format: | Multiple-choice, Multiple-select |
| Exam Duration: | 105 minutes |
| Exam Price: | $200 USD |
| Passing Score: | 65% |
| Available Languages: | English |
| 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 |
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.
How to book the Salesforce JavaScript-Developer-I Exam
There are the following steps for registering the Salesforce JavaScript Developer I exam. Step 1: Visit Salesforce Exam Registration Step 2: Signup/Login to Salesforce account Step 4: Select Date, time and confirm with the payment method
Average Salary for Salesforce JavaScript-Developer-I Exam Certified Professional
Salesforce JavaScript Developer roles are in great demand nowadays. The average salaries of Salesforce JavaScript Developer I exam Certified professional in:
- Europe - 63,500 Euro
- United State - 129,630 USD
- England - 60,200 POUND
Benefits in Obtaining Salesforce JavaScript-Developer-I Certification
With the introduction of the Lightning Experience by Salesforce, it is possible to develop cool, looking applications for a wide range of tasks. Admins have been able to create beautiful pages for their objects more than ever, with an interface entirely tailored for each user.For developers, the same application has never before been possible for Salesforce developers to create applications that stretch well beyond Salesforce's declarative features. It's all achieved with the use of a JavaScript application for Lightning & Lightning Web components.
The certification for JavaScript Developer I has just been released and fills a large gap in the certification list for Salesforce. Salesforce Developers who want to prove their Lightning skills, but also new entrants into the Salesforce community, are certified to demonstrate that they know what is relevant. A typical Salesforce 60 multi-choice test is split into two parts and is influenced by a super badge (Similar to Developer II certification).
Reference: https://trailheadacademy.salesforce.com/certificate/exam-javascript-dev---JS-Dev-101
Salesforce JavaScript-Developer-I日本語 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Variables, Types, and Collections | 23% | - Arrays and collections - Primitive and complex data types - JSON parsing and manipulation - Type coercion and conversion - Variable declarations and initialization - Strings, numbers, and dates - Truthy and falsy evaluations |
| Topic 2: Asynchronous Programming | 13% | - Promises (creation, chaining, error handling) - Callbacks - Asynchronous patterns for business requirements - Async/Await syntax - Event loop and execution flow |
| Topic 3: Debugging and Error Handling | 7% | - Console methods for debugging - Custom error types - Breakpoints and code inspection - Error handling techniques (try/catch/finally) |
| Topic 4: Browser and Events | 17% | - Browser-specific APIs - Browser Developer Tools usage - Event handling and listeners - Interacting with forms and user input - DOM manipulation - Event propagation (bubbling and capturing) |
| Topic 5: Testing | 7% | - Test coverage and reliability - Writing and modifying unit tests - Test effectiveness evaluation - Unit testing concepts |
| Topic 6: Server Side JavaScript | 8% | - Node.js fundamentals - Server-side JavaScript implementations - Core Node.js modules - CLI commands - Package management (npm) |
| Topic 7: Objects, Functions, and Classes | 25% | - Arrow functions - Prototypal inheritance - Higher-order functions - ES6 classes and inheritance - Variable scope and closures - Object creation and manipulation - Function declarations and expressions - Modules and decorators - Execution flow and context |
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