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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.

  • Functions (more functions in higher order)

  • Item Model Document

  • Modules

  • Objects & Arrays: Data Structures

  • Discharge

  • Strings

  • Monitor (agnostic platform)

  • Forms of data and operators

  • Conversion type (inclusive versus explicit)

  • Scope of Variables

  • Asynchronous Programming

  • Control of Mistake

  • JavaScript on the backend

  • Classes

  • Activities

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.

Reference: https://trailheadacademy.salesforce.com/certificate/exam-javascript-dev---JS-Dev-101

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.

Salesforce JavaScript-Developer-I日本語 Exam Syllabus Topics:

SectionWeightObjectives
Topic 1: Debugging and Error Handling7%- Console methods for debugging
- Breakpoints and code inspection
- Error handling techniques (try/catch/finally)
- Custom error types
Topic 2: Variables, Types, and Collections23%- Type coercion and conversion
- JSON parsing and manipulation
- Arrays and collections
- Strings, numbers, and dates
- Truthy and falsy evaluations
- Variable declarations and initialization
- Primitive and complex data types
Topic 3: Asynchronous Programming13%- Asynchronous patterns for business requirements
- Callbacks
- Event loop and execution flow
- Async/Await syntax
- Promises (creation, chaining, error handling)
Topic 4: Browser and Events17%- Browser Developer Tools usage
- DOM manipulation
- Event handling and listeners
- Interacting with forms and user input
- Browser-specific APIs
- Event propagation (bubbling and capturing)
Topic 5: Objects, Functions, and Classes25%- Modules and decorators
- Object creation and manipulation
- Arrow functions
- Execution flow and context
- Higher-order functions
- Prototypal inheritance
- Variable scope and closures
- ES6 classes and inheritance
- Function declarations and expressions
Topic 6: Server Side JavaScript8%- Core Node.js modules
- Server-side JavaScript implementations
- Node.js fundamentals
- Package management (npm)
- CLI commands
Topic 7: Testing7%- Test effectiveness evaluation
- Writing and modifying unit tests
- Test coverage and reliability
- Unit testing concepts

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