LocalStorage &&SSIONStorage
Offline cache (Application Cache)
indexeddb and websql
2. LocalStorage &&SSIONSTORAGEExpired time: LocalStorage permanent storage, never invalidated unless it is manually deleted
SessionStorage browser disappears after reappearing
Size: Each domain name is 5M
3. LocalStorage API and SessionStorage APIgetItem // take records
setititen // Settings record
Removeitem // Remove Record
Key // take the value corresponding to the key
clear // Clear records
4. Storage contentArray, pictures, json, style, script. Essence Essence (As long as it can be serialized into a string content, it can be stored)
5. LocalStorage instance JavaScript Code Copy content to clipboard