js有幾種主要數據類型
- json字符串: var jsonStr = “{key:value}”
- 數組:var arry = [] 數組 操作 arry[“xxx”] = “xxx”; 或 arry.push();
- json對象:var json = {} json對象 操作 json.xxx = “xxx”
- map對象:var map = new Map(); map.put(key,value)
幾種數據類型可以互包含
map刪除元素
for(var key in map){
delete map[key];
}
map遍歷 並轉化爲arry
angular.forEach(mapObj,function(value,index){
var json = {};
json["key "] = index;
json["name"] = value;
jsonArry.push(json)
});
map遍歷 並轉化爲json
angular.forEach(mapObj,function(value,index){
var json = {};
json.key = index;
json.value= value;
jsonArry.push(json)
});