jsカスタムmapセット操作
7460 ワード
/*
* MAP , MAP
*
* :
* size() MAP
* isEmpty() MAP
* clear() MAP
* put(key, value) MAP (key, value)
* remove(key) KEY , True, False
* get(key) KEY VALUE, NULL
* element(index) ( element.key,element.value KEY VALUE), NULL
* containsKey(key) MAP KEY
* containsValue(value) MAP VALUE
* values() MAP VALUE (ARRAY)
* keys() MAP KEY (ARRAY)
*
* :
* var map = new Map();
*
* map.put("key", "value");
* var val = map.get("key")
* ……
*
*/
function Map() {
this.elements = new Array();
// MAP
this.size = function() {
return this.elements.length;
};
// MAP
this.isEmpty = function() {
return (this.elements.length < 1);
};
// MAP
this.clear = function() {
this.elements = new Array();
};
// MAP (key, value)
this.put = function(_key, _value) {
var flag = true;
for (i = 0; i < this.elements.length; i++) {
if (this.elements[i].key == _key) {
flag = false;
}
}
if(flag){
this.elements.push( {
key : _key,
value : _value
});
}
};
// KEY , True, False
this.removeByKey = function(_key) {
var bln = false;
try {
for (i = 0; i < this.elements.length; i++) {
if (this.elements[i].key == _key) {
this.elements.splice(i, 1);
return true;
}
}
} catch (e) {
bln = false;
}
return bln;
};
// VALUE , True, False
this.removeByValue = function(_value) {//removeByValueAndKey
var bln = false;
try {
for (i = 0; i < this.elements.length; i++) {
if (this.elements[i].value == _value) {
this.elements.splice(i, 1);
return true;
}
}
} catch (e) {
bln = false;
}
return bln;
};
// VALUE , True, False
this.removeByValueAndKey = function(_key,_value) {
var bln = false;
try {
for (i = 0; i < this.elements.length; i++) {
if (this.elements[i].value == _value && this.elements[i].key == _key) {
this.elements.splice(i, 1);
return true;
}
}
} catch (e) {
bln = false;
}
return bln;
};
// KEY VALUE, NULL
this.get = function(_key) {
try {
for (i = 0; i < this.elements.length; i++) {
if (this.elements[i].key == _key) {
return this.elements[i].value;
}
}
} catch (e) {
return false;
}
return false;
};
// ( element.key,element.value KEY VALUE), NULL
this.element = function(_index) {
if (_index < 0 || _index >= this.elements.length) {
return null;
}
return this.elements[_index];
};
// MAP KEY
this.containsKey = function(_key) {
var bln = false;
try {
for (i = 0; i < this.elements.length; i++) {
if (this.elements[i].key == _key) {
bln = true;
}
}
} catch (e) {
bln = false;
}
return bln;
};
// MAP VALUE
this.containsValue = function(_value) {
var bln = false;
try {
for (i = 0; i < this.elements.length; i++) {
if (this.elements[i].value == _value) {
bln = true;
}
}
} catch (e) {
bln = false;
}
return bln;
};
// MAP VALUE
this.containsObj = function(_key,_value) {
var bln = false;
try {
for (i = 0; i < this.elements.length; i++) {
if (this.elements[i].value == _value && this.elements[i].key == _key) {
bln = true;
}
}
} catch (e) {
bln = false;
}
return bln;
};
// MAP VALUE (ARRAY)
this.values = function() {
var arr = new Array();
for (i = 0; i < this.elements.length; i++) {
arr.push(this.elements[i].value);
}
return arr;
};
// MAP VALUE (ARRAY)
this.valuesByKey = function(_key) {
var arr = new Array();
for (i = 0; i < this.elements.length; i++) {
if (this.elements[i].key == _key) {
arr.push(this.elements[i].value);
}
}
return arr;
};
// MAP KEY (ARRAY)
this.keys = function() {
var arr = new Array();
for (i = 0; i < this.elements.length; i++) {
arr.push(this.elements[i].key);
}
return arr;
};
// key value
this.keysByValue = function(_value) {
var arr = new Array();
for (i = 0; i < this.elements.length; i++) {
if(_value == this.elements[i].value){
arr.push(this.elements[i].key);
}
}
return arr;
};
// MAP KEY (ARRAY)
this.keysRemoveDuplicate = function() {
var arr = new Array();
for (i = 0; i < this.elements.length; i++) {
var flag = true;
for(var j=0;j<arr.length;j++){
if(arr[j] == this.elements[i].key){
flag = false;
break;
}
}
if(flag){
arr.push(this.elements[i].key);
}
}
return arr;
};
}