Basics
JS Modules
JavaScript ES Modules
JavaScript ES modules use import/export, supporting dynamic imports.
Introduction to JavaScript Modules
JavaScript ES Modules are a standardized way to organize and manage code in separate files. They allow developers to import and export functionalities, making code more reusable and easier to maintain. With ES Modules, you can split your code into smaller pieces, which can be loaded on demand, improving the performance and scalability of web applications.
Exporting Modules
To make a function, object, or primitive available to other modules, you can use the export statement. There are two types of exports: named exports and default exports.
Importing Modules
To use the exported functionalities from a module, you need to import them. You can import named exports and default exports in different ways:
Dynamic Imports
Dynamic imports allow you to load modules on demand. This can be particularly useful for optimizing performance in large applications by loading modules only when they are needed.
Benefits of Using ES Modules
- Modularity: Break down your code into reusable and manageable pieces.
- Maintainability: Easier to maintain and update code by keeping functionalities separate.
- Scalability: Enhances performance by loading code only when necessary.
- Standardization: Provides a standardized syntax and behavior across different environments.
Basics
- Introduction
- Where To
- Output
- Syntax
- Comments
- Variables
- Scope
- Hoisting
- Errors
- Data Types
- Operators
- Ternary Operator
- Short-Circuit Evaluation
- If Else
- Switch
- Loops
- For...Of/For...In
- Functions
- this Keyword
- Objects
- Arrays
- Strings
- Template Literals
- Numbers
- Number Properties
- Dates
- Math
- Booleans
- Type Conversion
- Destructuring
- Spread/Rest
- RegExp
- Strict Mode
- Modules
- Security Basics
- Debugging
- Best Practices
- Mistakes
- Performance
- Reserved Words
- Sets
- Maps
- Bitwise
- Array Const
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