jquery hashtable

jQuery.Hashtable = function() { 

02
    this.items = new Array(); 

03
    this.itemsCount = 0; 

04
    this.add = function(key, value) { 

05
        if (!this.containsKey(key)) { 

06
            this.items[key] = value; 

07
            this.itemsCount++; 

08
        } 

09
        else 

10
            throw "key '" + key + "' allready exists." 

11
    } 

12
    this.get = function(key) { 

13
        if (this.containsKey(key)) 

14
            return this.items[key]; 

15
        else 

16
            return null; 

17
    } 

18
  
19
    this.remove = function(key) { 

20
        if (this.containsKey(key)) { 

21
            delete this.items[key]; 

22
            this.itemsCount--; 

23
        } 

24
        else 

25
            throw "key '" + key + "' does not exists." 

26
    } 

27
    this.containsKey = function(key) { 

28
        return typeof (this.items[key]) != "undefined"; 

29
    } 

30
    this.containsValue = function containsValue(value) { 

31
        for (var item in this.items) { 

32
            if (this.items[item] == value) 

33
                return true; 

34
        } 

35
        return false; 

36
    } 

37
    this.contains = function(keyOrValue) { 

38
        return this.containsKey(keyOrValue) || this.containsValue(keyOrValue); 

39
    } 

40
    this.clear = function() { 

41
        this.items = new Array(); 

42
        itemsCount = 0; 

43
    } 

44
    this.size = function() { 

45
        return this.itemsCount; 

46
    } 

47
    this.isEmpty = function() { 

48
        return this.size() == 0; 

49
    } 

50
};
 
=======================================================

var hashtable = new jQuery.Hashtable(); 

2
$(function() { 

3
    $('#btnAdd').click(function() { 

4
        hashtable.add($('#txtAddKey').val(), $('#txtAddValue').val()); 

5
    }); 

6
    $('#btnGet').click(function() { 

7
        alert(hashtable.get($('#txtGetKey').val())) 

8
    }); 

9
})
jQuery.Hashtable-1.1.js.zip (667 Bytes)