秋梦无痕

from: http://taffydb.com/

Taffy DB : A JavaScript database for your browser

Taffy DB is a free and opensource JavaScript library that acts as thin data layer inside Web 2.0 and Ajax applications.

What makes it cool:
※Under 10K!
※Simple, JavaScript Centric Syntax
※Fast
※Easy to include in any web application
※Compatible with major Ajax libraries: YUI, JQuery, Dojo, Prototype, EXT, etc
※CRUD Interface (Create, Read, Update, Delete)
※Sorting
※Looping
※Advanced Queries

Think of it as a SQL database in your web browser.

坦白说，如果页面切换就清空数据库内容的话，实在想不出来这个东西有什么好处。也许只能做成gmail那样的，但是gmail那样的东西需要一个javascript database么？

例子：

Creating Collections:
var friends = new TAFFY({name:"Brian", gender:"M", married:"No", age:52, state:"FL", favorite_foods:["fruit","steak"]});

Insert:
friends.insert({name:"Joyce", ender:"F", married:"No", age:29, state:"WA", favorite_foods:["salad","cheese sticks"]});

Find:
friends.find({age:{greaterthan:22}});

Update:
friends.update({state:"CA",married:"Yes"},{name:"Joyce"});

Remove:
friends.remove({name:"Brian"});

OrderBy:
friends.orderBy(["age",{"name":"asce"}]);

ForEach:
friends.forEach(function (f) {alert(f.name);},{favorite_foods:{arraycontains:"pizza"}});

Get / First:
friends.get({name:"Joyce"});

Advanced Queries:
friends.find({state:["WA","MT","ID"], age:{less:50}}, [0,2]);