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To become a Salesforce Certified JavaScript Developer I, candidates must pass the JavaScript-Developer-I exam. JavaScript-Developer-I-JPN exam consists of 60 multiple-choice questions, and candidates have 105 minutes to complete the test. The passing score for the exam is 68%, and the test is available in multiple languages.
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Salesforce JavaScript-Developer-I (Salesforce Certified JavaScript Developer I) Exam is a certification exam that is designed to test the skills and knowledge of developers who use JavaScript in the Salesforce platform. Salesforce Certified JavaScript Developer I Exam (JavaScript-Developer-I日本語版) certification is ideal for developers who are looking to demonstrate their expertise in using JavaScript to build custom applications, automate business processes, and enhance the user experience in Salesforce.
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Salesforce Certified JavaScript Developer I certification exam is a challenging assessment that evaluates a developer’s knowledge and skills in building custom applications using the Salesforce Lightning platform. JavaScript-Developer-I-JPN exam tests a developer’s ability to build custom user interfaces, create custom Lightning components, and use Apex and JavaScript to build custom logic and automation. Salesforce Certified JavaScript Developer I Exam (JavaScript-Developer-I日本語版) certification is designed for developers who have experience with JavaScript, HTML, and CSS and are familiar with Salesforce’s Lightning Component framework.
Salesforce Certified JavaScript Developer I certification exam consists of 60 multiple-choice questions that must be completed within 105 minutes. JavaScript-Developer-I-JPN exam covers a range of topics, including Lightning Data Service, Apex, JavaScript, and Lightning Web Components. To prepare for the exam, Salesforce recommends taking the Building Lightning Components with JavaScript course, which covers the fundamentals of building custom Lightning components using JavaScript. Additionally, Salesforce offers Trailhead, a free online learning platform that provides hands-on experience with building custom applications on the Salesforce platform.
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 |
|---|---|---|
| Browser and Events | 17% | - Event handling and listeners - DOM manipulation - Interacting with forms and user input - Event propagation (bubbling and capturing) - Browser-specific APIs - Browser Developer Tools usage |
| Testing | 7% | - Test coverage and reliability - Test effectiveness evaluation - Writing and modifying unit tests - Unit testing concepts |
| Objects, Functions, and Classes | 25% | - Object creation and manipulation - ES6 classes and inheritance - Higher-order functions - Variable scope and closures - Prototypal inheritance - Execution flow and context - Modules and decorators - Arrow functions - Function declarations and expressions |
| Variables, Types, and Collections | 23% | - Truthy and falsy evaluations - Strings, numbers, and dates - Type coercion and conversion - JSON parsing and manipulation - Arrays and collections - Primitive and complex data types - Variable declarations and initialization |
| Asynchronous Programming | 13% | - Promises (creation, chaining, error handling) - Event loop and execution flow - Async/Await syntax - Callbacks - Asynchronous patterns for business requirements |
| Server Side JavaScript | 8% | - Node.js fundamentals - Package management (npm) - CLI commands - Server-side JavaScript implementations - Core Node.js modules |
| Debugging and Error Handling | 7% | - Breakpoints and code inspection - Error handling techniques (try/catch/finally) - Console methods for debugging - Custom error types |
