一种功能丰富且友好的方式，可以利用localStorage和sessionStorage（JSON，命名空间，扩展等）。 

文档

主要的存储功能可以处理set，get，transact，setAll，getAll和clear 行为直接。这些被称为：

store(key, data);                 // sets stringified data under key
store(key);                       // gets and parses data stored under key
store(key, fn[, alt]);            // run transaction function on/with data stored under key
store({key: data, key2: data2});  // sets all key/data pairs in the object
store();                          // gets all stored key/data pairs as an object
store((key, data)=>{ });          // calls function for each key/data in storage, return false to exit
store(false);                     // clears all items from storage

[方括号]中的参数是可选的。还有更明确​​和多功能的功能： 

store.set(key, data[, overwrite]); // === store(key, data);
store.setAll(data[, overwrite]);   // === store({key: data, key2: data});
store.get(key[, alt]);             // === store(key);
store.getAll([fillObj]);           // === store();
store.transact(key, fn[, alt]);    // === store(key, fn[, alt]);
store.clear();                     // === store(false);
store.has(key);                    // returns true or false
store.remove(key[, alt]);          // removes key and its data, then returns the data or alt, if none
store.each(fn[, fill]);            // === store(fn); optional call arg will be 3rd fn arg (e.g. for gathering values)
store.add(key, data);              // concats, merges, or adds new value into existing one
store.keys([fillList]);            // returns array of keys
store.size();                      // number of keys, not length of data
store.clearAll();                  // clears *ALL* areas (but still namespace sensitive)

链接: https://www.fly63.com/nav/2673