将json保存到chrome存储/本地存储

Question

我想将json保存到chrome或本地存储.我还需要能够添加项目而不会丢失其他项目.

Answer 1

更新

var local = (function(){

    var setData = function(key,obj){
        var values = JSON.stringify(obj);
        localStorage.setItem(key,values);
    }

    var getData = function(key){
        if(localStorage.getItem(key) != null){
        return JSON.parse(localStorage.getItem(key));
        }else{
            return false;
        }
    }

    var updateDate = function(key,newData){
        if(localStorage.getItem(key) != null){
            var oldData = JSON.parse(localStorage.getItem(key));
            for(keyObj in newData){
                oldData[keyObj] = newData[keyObj];
            }
            var values = JSON.stringify(oldData);
            localStorage.setItem(key,values);
        }else{
            return false;
        }
    }

    return {set:setData,get:getData,update:updateDate}
})();

你怎么用的？

如果要设置值:

var a = {'test':123};
local.set('valueA',a);

当你想获得价值时:

var a = local.get('valueA')

想要更新值或插入新值时

var b = {'test':333,'test2':555};
local.set('valueA',b);