modern-javascript-patterns

Modern JavaScript refactoring involves replacing older syntax with arrow functions, destructuring, spread/rest operators, and modules. This transition improves code readability, maintainability, and performance while leveraging clean ES6+ syntax.

Async/await and Promises handle asynchronous programming in JavaScript by chaining operations and pausing execution until resolution. This pattern prevents callback hell and ensures cleaner handling of asynchronous data flows.

Applying functional programming in JavaScript uses higher-order functions and array methods like map, filter, and reduce. This approach emphasizes composition and immutability to create predictable, maintainable logic without mutating state.

Modern JavaScript modules and destructuring significantly improve code maintainability. Modules encapsulate logic for clean imports, while destructuring extracts object properties directly, reducing boilerplate and enhancing application readability.

Limitations of functional programming patterns in JavaScript include potential performance overhead from chaining multiple array methods like map and filter. Deeply nested compositions can impact execution speed in performance-critical loops.