javascript

Sometimes you need to attach a header to every Turbo request (like a feature-flag variant, or a client version). Turbo emits turbo:before-fetch-request, which lets you mutate the outgoing request before it is sent. I keep the handler tiny and global (

After a successful inline create, I usually want to clear the form. You can replace the whole form partial, but sometimes you want to preserve other state (like which field was focused) and simply reset values. A clean Hotwire approach is a custom Tur

Stimulus adds JavaScript behavior to HTML without building SPAs. Controllers attach to DOM elements via data-controller. I use Stimulus for modals, dropdowns, form validation, autocomplete. Actions connect events to controller methods via data-action.

Losing form data due to browser crashes or accidental navigation is frustrating. An autosave controller periodically saves form state to localStorage and restores it on page load. I debounce the save operation to avoid excessive writes and clear the d

Front-end security protects users from malicious attacks. I prevent Cross-Site Scripting (XSS) by sanitizing user input and using textContent instead of innerHTML. Content Security Policy (CSP) headers restrict resource loading to trusted sources. Cro

Web Components create reusable custom elements with encapsulated functionality. I use Custom Elements API to define new HTML tags with customElements.define(). Shadow DOM provides style and markup encapsulation preventing CSS leakage. HTML Templates w

JavaScript error handling uses try...catch...finally blocks to manage exceptions gracefully. I throw custom errors with throw new Error('message') for better debugging. The finally block runs regardless of success or failure. Using console.error(), co

State management solutions handle data flow in complex applications. I use React Context API for moderate state sharing without prop drilling. The createContext function creates context objects, while Provider passes data down the tree. The useReducer