/*
* MAP對象,實作MAP功能
*
* 介面:
* size() 取得MAP元素個數
* isEmpty() 判斷MAP為空
* clear() 刪除MAP所有元素
* put(key, value) 向MAP中增加元素(key, value)
* remove(key) 刪除指定KEY的元素,成功返回True ,失敗回傳False
* get(key) 取得指定KEY的元素值VALUE,失敗回傳NULL
* element(index) 取得指定索引的元素(使用element.key,element.value取得KEY和VALUE) ,失敗回傳NULL
* containsKey(key) 判斷MAP中是否含有指定KEY的元素
* containsValue(value) 判斷MAP中是否含有指定VALUE的元素
* values() 取得MAP中所有VALUE的陣列(ARRAY)
* keys() 取得MAP中所有KEY的陣列(ARRAY)
*
* 範例:
* var map = new Map();
*
* var map = new Map();
*
* var map = new Map(); * * var map = new Map(); * * var map = new Map(); * * map.put("key", "value"); * var val = map.get("key") * …
*
*/
function Map() {
this.elements = new Array();
//取得MAP元素個數
this.size = function () {
return this.elements.length;
};
//判斷MAP是否為空
this.isEmpty = function() {
return (this.elements .length };
//刪除MAP所有元素
this.clear = function() {
this.elements = new Array();
} ;
//增加元素在MAP (key, value)
this.put = function(_key, _value) {
this.elements.push( {
key : _key,
value : _value
});
};
//刪除指定KEY的元素,成功回傳True,失敗回傳False
this.removeByKey = function(_key) {
var bln = false;
try {
for (i = 0; i if (this.elements[i].key == _key) {
this.elements.splice(i, 1);
return true;
}
}
} catch (e) {
bln = false;
}
return bln;
};
//刪除指定VALUE的元素,成功傳回True,失敗回傳False
this.removeByValue = function(_value) {//removeByyAndKeyKey bln = false;
try {
for (i = 0; i if (this.elements[i].value == _value) {
this.elements.splice(i, 1);
return true;
}
}
} catch (e) {
bln = false;
}
return bln ;
};
//刪除指定VALUE的元素,成功回傳True,失敗回傳False
this.removeByValueAndKey = function(_key,_value) {
var bln = false;
try {
for (i = 0; i if (this.elements[i].value == _value && this.elements[i].key = = _key) {
this.elements.splice(i, 1);
return true;
}
}
} catch (e) {
bln = false;
} catch (e) {
bln = false;
} catch (e) {
bln = false;
} catch (e) {
bln = false;
} catch (e) {
bln = false;
} >}
return bln;
};
//取得指定KEY的元素值VALUE,失敗回傳NULL
this.get = function(_key) {
try {
for (i = 0; i if (this.elements[i].key == _key) {
return this.elements[i].value;
}
}
} catch (e) {
return false;
}
return false;
};
//取得指定索引的元素(使用element.key,element.value取得KEY和VALUE),失敗回傳NULL
this.element = function(_index) {
if (_index = this.elements.length) {
return null;
}
return this.elements[_index];
};
//判斷MAP中是否含有指定KEY的元素
this.containsKey = function(_key) {
var bln = false;
try {
for (i = 0; i if (this.elements[i] .key == _key) {
bln = true;
}
}
} catch (e) {
bln = false;
}
return bln
};
//判斷MAP中是否含有指定VALUE的元素
this.containsValue = function(_value) {
var bln = false;
try {
for ( i = 0; i if (this.elements[i].value == _value) {
bln = true;
}
}
}
} catch (e) {
bln = false;
}
return bln;
};
//判斷MAP中是否含有指定VALUE的元素
this
//判斷MAP中是否含有指定VALUE的元素
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//判斷MAP中是否含有指定VALUE的元素
this
//判斷MAP中是否含有指定VALUE的元素
this
//判斷MAP中是否含有指定VALUE的元素
this
//判斷MAP中是否含有指定VALUE的元素
this .containsObj = function(_key,_value) {
var bln = false;
try {
for (i = 0; i if (this. elements[i].value == _value && this.elements[i].key == _key) {
bln = true;
}
}
} catch (e) {
bln = false;
}
return bln;
};
//取得MAP中所有VALUE的陣列(ARRAY)
this.values = function() {
var arr = new Array();
for (i = 0; i arr.push(this.elements[i].value);
}
return arr;
};
//取得MAP中所有VALUE的陣列(ARRAY)
this.valuesByKey = function(_key) {
var arr = new Array( );
for (i = 0; i if (this.elements[i].key == _key) {
arr.push(this.elements [i].value);
}
}
return arr;
};
//取得MAP中所有KEY的陣列(ARRAY)
this.keys = function() {
var arr = new Array();
for (i = 0; i arr.push(this.elements[i]. key);
}
return arr;
};
//取得key透過value
this.keysByValue = function(_value) {
var arr = new Array ();
for (i = 0; i if(_value == this.elements[i].value){
arr.push(this. elements[i].key);
}
}
return arr;
};
//取得MAP中所有KEY的陣列(ARRAY)
this. keysRemoveDuplicate = function() { var arr = new Array(); for (i = 0; i var flag = true; for( var j=0;j
if(arr[j] == this.elements[i].key){ flag = false; break; } } if(flag){ arr.push(this.elements[i].key); } } return arr; }; }