kemod: Double LinkedList

kemod

Selasa, 26 Mei 2009

Double LinkedList

?html>
?head>
?title>Struktur Data Linked List?/title>
?/head>
?body>
?script language = "JavaScript">
?!--

function LinkedList()
{
this._panjang = 0;
this._kepala = null;
}

LinkedList.prototype =
{
constructor: LinkedList,

//Membuat Metode untuk Menambah Data Kedalam List
Tambah: function (data)
{
//Membuat Node List
var node = {data: data, next: null}, NodeTanda;

//Periksa Isi List
if (this._kepala === null)
{
this._kepala = node;
}
else
{
NodeTanda = this._kepala;
while (NodeTanda.next)
{
NodeTanda = NodeTanda.next;
}
NodeTanda.next = node;
}
this._panjang++
},

//Membuat metode Untuk Menunjuk Item Data
Item: function (index)
{
if (index > -1 && index ? this._panjang)
{
var NodeTanda = this._kepala,
i = 0;
while (i++ ? index)
{
NodeTanda = NodeTanda.next;
}
return NodeTanda.data;
}
else
{
return null;
}
},

//Membuat metode Untuk Membuang Elemen List
Buang: function (index)
{
if (index > -1 && index ? this._panjang)
{
var NodeTanda = this._kepala, previous, i = 0;
if (index === 0)
{
this._kepala = NodeTanda.next;
}
else
{
while (i++ ? index)
{
previous = NodeTanda;
NodeTanda = NodeTanda.next;
}

previous.next =NodeTanda.next;
}
this._panjang--;
return NodeTanda.data;
}
else
{
return null;
}
},

//Membuat metode Untuk Mengetahui Jumlah Elemen List
Ukuran: function()
{
return this._panjang;
},

//Membuat metode Untuk Membentuk Array
toArray: function()
{
var result = [],
NodeTanda = this._kepala;

while (NodeTanda)
{
result.push (NodeTanda.data);
NodeTanda = NodeTanda.next;
}
return result;
},

//Membuat metode Untuk Konversi ke String
toString: function()
{
return this.toArray().toString();
}

}
var list = new LinkedList ();

list.Tambah("Teknik Informatika");
list.Tambah("Teknik Komputer");
list.Tambah("Komputerisasi Akuntansi");
list.Tambah("Komputer Networking");

document.write("Isi Linked List ?br>");
document.write("--------------- ?br>");
for (i=0; i?4; i++)
{
document.write(list.Item(i) + "?br>");
}
document.write("--------------- ?br>");

alert("Isi Linked List Awal =" +list.Item(0));
alert("Item 1 Pada Linked List dibuang, Yaitu =" +list.Item(1));
list.Buang(1);

document.write("Isi Linked List Terakhir ?br>");
document.write("---------------- ?br>");
for (i=0; i?4; i++)
{
document.write(list.Item(i) + "?br>");
}
document.write("---------------- ?br>");

//-->
?/script>
?/body>
?/html>

posted by Abah Kemod,,, @ 20.05

1 Comments:

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