Wiki Article · Cinematic

Web Storage

Web Storage ek browser-native API hai jo web applications ko user ke browser me client-side…

Overview

Web Storage — Quick Facts

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Field: Detail

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Full Name: Web Storage API

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Also Known As: DOM Storage, HTML5 Storage, Local…

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Specification: HTML Living Standard (WHATWG), W3C…

Topic 1

Infobox

🌐 | Field | Detail | |---|---| | Full Name | Web Storage API | | Also Known As | DOM…

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Overview

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Data browser me store hota hai,…

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String-based key-value pairs me…

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Same-origin policy se governed hai…

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localStorage permanent hai (jab…

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History aur Evolution

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Internet Explorer userData…

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Flash Local Shared Objects (LSOs)…

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Google Gears — Google ka offline…

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2009: Web Storage specification ka…

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How Web Storage Works

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https://example.com aur…

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https://example.com aur…

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https://example.com:443 aur…

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localStorage vs sessionStorage

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User preferences (dark mode,…

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Authentication tokens…

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Application configuration cache

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Last visited pages / browsing…

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Web Storage vs Cookies

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Cookies best hain jab data server…

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Web Storage best hai jab data sirf…

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API Methods (Conceptual)

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setItem(key, value) — Ek key-value…

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getItem(key) — Given key ke…

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removeItem(key) — Given key aur…

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clear() — Sabhi key-value pairs ko…

Topic 8

Capacity aur Limits

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5 MB ka matlab 5 MB UTF-16 encoded…

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Kuch browsers (jaise Safari…

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QuotaExceededError — Jab limit…

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Storage quota per-origin hai,…

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Data Format aur Serialization

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Agar aap ek number store karo…

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Agar aap ek boolean store karo, to…

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Agar aap ek object directly store…

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Store:…

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Security Considerations

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Sirf same protocol + domain + port…

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Yeh basic isolation provide karta…

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Agar ek attacker aapki website par…

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Cookies ke paas HttpOnly flag hai…

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Storage Event (Cross-Tab Communication)

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key — Kaunsi key change hui

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oldValue — Key ki purani value (ya…

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newValue — Key ki nayi value (ya…

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url — Kis page ne change kiya

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Alternatives to Web Storage

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Large datasets (100 KB+) —…

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Complex queries — IndexedDB…

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Binary data (images, files) —…

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Offline-first apps — Service…

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Enterprise Considerations

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Quota monitoring — Applications ko…

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Cleanup policies — Stale ya…

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Versioning — Storage schema change…

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Namespacing — Multiple…

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Aliens WebOS Context

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User Preferences — Har WebApp user…

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Session State — Temporary…

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SDK Caching — WebSDK responses ko…

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Offline Fallback — Basic offline…

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Glossary

⚡ | # | Term | Definition | |---|---|---| | 1 | Web Storage | Browser API jo client-side…

Comparison

localStorage vs sessionStorage

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Persistence: Permanent — browser close…

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Scope: Same origin ke sabhi…

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Capacity: ~5-10 MB per origin

Comparison

Web Storage vs Cookies

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Capacity: 5–10 MB per origin

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Server Transmission: Data server ko…

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API: Simple:…

Diagram

Visual Flow

📊 Diagram visualization — details in narration

Diagram

Visual Flow

📊 Diagram visualization — details in narration

Quiz — Question 1

Web Storage ka sabse sahi definition kya hai?

Quick Quiz

Quiz — Question 2

Web Storage ka 'Full Name' kya hai?

Complete! 🎉

Web Storage Complete!

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Web Storage Complete

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