从本地存储中的对象删除数组 [英] Delete array from object in localstorage

问题描述

当我单击按钮时，将加载带有参数"id"的函数"DeleteFromlocalStorage". 这是我的函数"DeleteFromlocalStorage":

When I click on a button I load the function "DeleteFromlocalStorage" with the parameter "id". This is my function "DeleteFromlocalStorage":

        function DeleteSessionFromLocalStorage(data)
    {
        var id_session = data;

        a = localStorage.getItem('session');

        alert(a);

    }

我的alert(a);给我这个输出:

{"21114":{"id":"21114"，"external_id":"，"sessiongroupid":"1844"，"eventid":"5588"，"order":"0"，名称:""localStorage HTML5会话"，描述":"localstorage"，开始时间":"2013-04-23 12:00:00"，结束时间":"2013-04-23 13:30:00"， "speaker":"，"location":"，"mapid":"0"，"xpos":"0.000000"，"ypos":"0.000000"，"maptype":"plan"，"imageurl": "，"presentation":"，"organizer":"0"，"twitter":"，"allowAddToFavorites":"0"，"allowAddToAgenda":"0"，"votes":"0"，"url:"，" venueid:" 0}， "21115:{" id:" 21115，" external_id:"，" sessiongroupid:" 1845，" eventid:" 5588，" order:" 0，" name:" tweede"，说明":"tweede"，开始时间":"2013-04-03 00:00:00"，结束时间":"2013-04-04 00:00:00"，扬声器":" "location":"，"mapid":"0"，"xpos":"0.000000"，"ypos":"0.000000"，"maptype":"plan"，"imageurl":"，"presentation": "，"organizer":"0"，"twitter":"，"allowAddToFavorites":"0"，"allowAddToAgenda":"0"，"votes":"0"，"url":"，会场标识号:"0"}，"21118":{"id":"21118"，"external_id":"，"sessiongroupid":"1848"，"eventid":"5588"，"order":"0 ，"名称:" javascript会话，"描述:"关于javascript的会话，"开始时间:" 2013-05-15 12:00:00，"结束时间:" 2013-05-15 12: 30:00，" speaker:"，" location:" waregem，" mapid:" 0，" xpos:" 0.000000，" ypos:" 0.000000，" maptype:" plan ，" imageurl:"，" presentation:"，" organizer:" 0，" twitter:"，" allowAddToFavorites:" 0，" allowAddToAgenda:" 0，" votes":"0"，"url":"，"venueid":"0"}}

{"21114":{"id":"21114","external_id":"","sessiongroupid":"1844","eventid":"5588","order":"0","name":"localStorage HTML5 Session","description":"localstorage","starttime":"2013-04-23 12:00:00","endtime":"2013-04-23 13:30:00","speaker":"","location":"","mapid":"0","xpos":"0.000000","ypos":"0.000000","maptype":"plan","imageurl":"","presentation":"","organizer":"0","twitter":"","allowAddToFavorites":"0","allowAddToAgenda":"0","votes":"0","url":"","venueid":"0"}, "21115 :{"id":"21115","external_id":"","sessiongroupid":"1845","eventid":"5588","order":"0","name":"tweede","description":"tweede","starttime":"2013-04-03 00:00:00","endtime":"2013-04-04 00:00:00","speaker":"","location":"","mapid":"0","xpos":"0.000000","ypos":"0.000000","maptype":"plan","imageurl":"","presentation":"","organizer":"0","twitter":"","allowAddToFavorites":"0","allowAddToAgenda":"0","votes":"0","url":"","venueid":"0"},"21118":{"id":"21118","external_id":"","sessiongroupid":"1848","eventid":"5588","order":"0","name":"javascript session","description":"session about javascript","starttime":"2013-05-15 12:00:00","endtime":"2013-05-15 12:30:00","speaker":"","location":"waregem","mapid":"0","xpos":"0.000000","ypos":"0.000000","maptype":"plan","imageurl":"","presentation":"","organizer":"0","twitter":"","allowAddToFavorites":"0","allowAddToAgenda":"0","votes":"0","url":"","venueid":"0"}}

如您所见，我有一个json字符串.密钥始终是ID.现在我要删除id =参数id的json.

As you can see I have a json string. The key is always the id. Now I want to delete the json with the id = parameter id.

我将必须获取对象并删除子对象，然后在我的localStorage中恢复该对象.有人知道我该怎么做吗?

I will have to get the object and delete the subobject and restore the object in my localStorage. Does anybody know how I can do this?

提前谢谢！

推荐答案

for(obj in json) {       
            if(json[obj].id == id_session)
            {
                delete json[obj];

            }
        }

        localStorage.setItem('session', JSON.stringify(json));

获取对象，检查每个对象的每个ID，然后删除ID ="id_session"的对象.

Get the objects, check every id of every object and delete the ones with the id = "id_session".

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