javascript 离子本地存储删除项目
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Ionic local storage remove item
提问by Joseph Ocasio
Can someone help me to create a method to remove from ionic local storage?
有人可以帮我创建一种从离子本地存储中删除的方法吗？
So far I have tried
到目前为止我已经尝试过
set: function(key, value) {
$window.localStorage[key] = value;
},
get: function(key) {
return $window.localStorage[key];
},
setObject: function(key, value) {
$window.localStorage[key] = JSON.stringify(value);
},
getObject: function(key) {
return JSON.parse($window.localStorage[key]);
},
removeItem: function(key){
$window.localstorage.splice(key, 1);
}
removeItem doesnt work at all. I want to remove by positions, not by key.
removeItem 根本不起作用。我想按位置删除，而不是按键删除。
回答by devqon
You are using localStorageas an array, while it isn't. It has default functions to remove an item:
您正在使用localStorage数组，而事实并非如此。它具有删除项目的默认功能：
removeItem: function(key){
$window.localStorage.removeItem(key);
}
If you want to remove by index, you have to get the item first:
如果要按索引删除，则必须先获取项目：
removeByIndex: function (index) {
$window.localStorage.removeItem($window.localStorage.key(index));
}
回答by Divyesh
Try the built in methods, which will help to complete the whole transaction of the removal of your key:valuefrom LocalStorage
尝试内置方法，这将有助于完成key:value从LocalStorage
回答by NHTorres
This would be the best way. With this factory you can create, retrieve, or delete any created key
这将是最好的方法。使用此工厂，您可以创建、检索或删除任何已创建的密钥
.factory('sessionService',['$http',function($http){
return {
set:function(key,value){
return localStorage.setItem(key,JSON.stringify(value));
},
get:function(key){
return JSON.parse(localStorage.getItem(key));
},
destroy:function(key){
return localStorage.removeItem(key);
},
};
}])
