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How much Salesforce JavaScript-Developer-I Exam Cost
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 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.
Modules
Classes
Discharge
Item Model Document
Forms of data and operators
Strings
Control of Mistake
Functions (more functions in higher order)
Asynchronous Programming
Conversion type (inclusive versus explicit)
Monitor (agnostic platform)
Objects & Arrays: Data Structures
Scope of Variables
Activities
JavaScript on the backend
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.
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Salesforce JavaScript-Developer-I日本語 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Asynchronous Programming | 13% | - Event loop and execution flow - Asynchronous patterns for business requirements - Callbacks - Promises (creation, chaining, error handling) - Async/Await syntax |
| Topic 2: Variables, Types, and Collections | 23% | - Arrays and collections - Type coercion and conversion - Truthy and falsy evaluations - Strings, numbers, and dates - JSON parsing and manipulation - Variable declarations and initialization - Primitive and complex data types |
| Topic 3: Server Side JavaScript | 8% | - Package management (npm) - Server-side JavaScript implementations - CLI commands - Node.js fundamentals - Core Node.js modules |
| Topic 4: Browser and Events | 17% | - Event propagation (bubbling and capturing) - Browser-specific APIs - Event handling and listeners - DOM manipulation - Interacting with forms and user input - Browser Developer Tools usage |
| Topic 5: Debugging and Error Handling | 7% | - Custom error types - Console methods for debugging - Error handling techniques (try/catch/finally) - Breakpoints and code inspection |
| Topic 6: Testing | 7% | - Test coverage and reliability - Unit testing concepts - Test effectiveness evaluation - Writing and modifying unit tests |
| Topic 7: Objects, Functions, and Classes | 25% | - Prototypal inheritance - Object creation and manipulation - ES6 classes and inheritance - Modules and decorators - Higher-order functions - Function declarations and expressions - Arrow functions - Execution flow and context - Variable scope and closures |
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