Common Storage Patterns

Storage Patterns

Build a reusable storage service with typed getters/setters, versioning, and automatic JSON serialization to avoid repeating boilerplate code.

Example

// Typed storage service
class StorageService {
  constructor(prefix = "app") {
    this.prefix = prefix;
  }

  key(name) { return `${this.prefix}:${name}`; }

  set(name, value) {
    localStorage.setItem(this.key(name), JSON.stringify(value));
  }

  get(name, fallback = null) {
    try {
      const v = localStorage.getItem(this.key(name));
      return v !== null ? JSON.parse(v) : fallback;
    } catch { return fallback; }
  }

  remove(name) { localStorage.removeItem(this.key(name)); }
}

const store = new StorageService("myapp");
store.set("theme", "dark");
store.get("theme", "light"); // "dark"

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Pro Tip

Namespace storage keys with a prefix (app:key) to avoid collisions with libraries and third-party scripts.

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