Dalam penggunaan javascript terkadang kita menggunakan fungsi kumpulan objek layaknya record di database. TaffyDB merupakan library yang memungkinkan fungsionalitas database ke dalam javascript.

Beberapa kelebihan TaffyDB adalah:

  • Ukuran file kecil, dan query yang sangat cepat
  • Powerful JavaScript centric data selection engine
  • Beberapa fitur seperti dataabase: count, update, and insert
  • Dukungan cross browser
  • Mudah diperluas sesuai dengan fungsi anda sendiri
  • Kompatibel dengan DOM library (jQuery, YUI, Dojo, etc)
  • Kompatibel dengan Server Side JS

Membuat Database

// Create DB and fill it with records
var friends = TAFFY([
	{"id":1,"gender":"M","first":"John","last":"Smith","city":"Seattle, WA","status":"Active"},
	{"id":2,"gender":"F","first":"Kelly","last":"Ruth","city":"Dallas, TX","status":"Active"},
	{"id":3,"gender":"M","first":"Jeff","last":"Stevenson","city":"Washington, D.C.","status":"Active"},
	{"id":4,"gender":"F","first":"Jennifer","last":"Gill","city":"Seattle, WA","status":"Active"}	
]);

Filter menggunakan database dan perbandingan objek

// Find all the friends in Seattle
friends({city:"Seattle, WA"});

// Find John Smith, by ID
friends({id:1});

// Find John Smith, by Name
friends({first:"John",last:"Smith"});

Mengakses Data

// Kelly's record
var kelly = friends({id:2}).first();

// Kelly's last name
var kellyslastname = kelly.last;

// Get an array of record ids
var cities = friends().select("id");

// Get an array of distinct cities
var cities = friends().distinct("city");

// Apply a function to all the male friends
friends({gender:"M"}).each(function (r) {
   alert(r.name + "!");
});

Mengubah Data secara langsung

// Move John Smith to Las Vegas
friends({first:"John",last:"Smith"}).update({city:"Las Vegas, NV:"});

// Remove Jennifer Gill as a friend
friends({id:4}).remove();

// insert a new friend
friends.insert({"id":5,"gender":"F","first":"Jennifer","last":"Gill","city":"Seattle, WA","status":"Active"});

Untuk lebih jelasnya bisa langsung ke http://www.taffydb.com/

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