export const vs. export default in ES6
Usage
export const is used when there are multiple named exports in a module and you want to import using braces ({}), for example:
We use export default when there is a single, primary export in our module. This is imported without braces:
Summarizing, go for export const when there are multiple exports, and export default when there is a 'hero' export.
Comparing export const and export default: where and why
In the realm of modules
When deciding between export const and export default, think about the purpose of your module:
- Single entity like a main class or function β‘οΈ
export default - Collection of related functions β‘οΈ
export constfor each function
In the kingdom of compatibility and refactor-friendliness
CommonJS loyalists, export default gives seamless transition. In TypeScript land, export const provides explicit imports for a stronger development guard.
In the empire of large-scale applications
Frontend monarchs, Webpack and Rollup, optimize both export default and named exports. For mammoth-sized applications, reliant on breakdowns, opt for direct exports.
Diving deeper: to name or not to name?
export const: The charm of named exports
Named exports could be your knight in shining armor when you need to maintain a clear contract between modules. They are a blessing for refactoring and provide a shield against accidental misnaming.
export default: The allure of the unnamed
Surprisingly, the absence of a name has its own allure. With export default, your module consumers have the freedom to name the import according to their preference - casual Fridays, every day!πΌβ‘οΈπ But, remember to stick to meaningful names for the sake of your colleagues (and future you π).
The adventurous journey of export const and export default
Namespace imports and the guile of naming exports
Consider namespace imports as your swiss army knife. They allow you to import all named exports under a single object. This is like having a toolbox where each tool is an exported function.
Bane of refactoring, or is it?
Refactoring with default exports might feel like climbing Mount Everest in flip-flops π as their lack of fixed naming can lead to confusion. Fear not! Named exports act as trusty guides, initiating a clearer path for relocating, renaming, and optimization.
Dynamic imports and the boom in your productivity
Dynamic imports (import(*)) introduce a whole new world of lazy loading and granular control over your project's flow. Named exports play a crucial role in this realm, keeping things predictive and manageable.
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