1. Unified State Thinking
A interface component is always in a specific state. JavaScript is responsible for managing the transitions between states (e.g. toggling menu visibility classes) cleanly and predictably.
JavaScript Systems
JavaScript adds interactive behavior to web systems. When implemented correctly, it supports visual structure instead of fighting against it.
2. DOM Event Listeners
Connect listeners to DOMContentLoaded. Avoid inline script bindings within HTML tags. Using modular event selectors keeps interface actions transparent and isolated.
3. Micro-Script Responsibility
Limit script functions to single responsibilities. Overloading script controllers creates untracked side-effects and makes debugging difficult. Keep codebase modules small and focused.
4. Performance Optimization
Use passive scroll listeners and requestAnimationFrame handlers for animations. Minimize direct DOM manipulation layouts to prevent rendering lag.