Javascript 将json保存到chrome存储/本地存储
我想将json保存到chrome或本地存储。我还需要能够在不丢失其他项目的情况下添加项目。更新Javascript 将json保存到chrome存储/本地存储,javascript,json,google-chrome,google-chrome-extension,Javascript,Json,Google Chrome,Google Chrome Extension,我想将json保存到chrome或本地存储。我还需要能够在不丢失其他项目的情况下添加项目。更新 var local = (function(){ var setData = function(key,obj){ var values = JSON.stringify(obj); localStorage.setItem(key,values); } var getData = function(key){ if(loca
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
要设置值时,请执行以下操作:
var a = {'test':123};
local.set('valueA',a);
当您想要获取值时:
var a = local.get('valueA')
要更新值或插入新值时
var b = {'test':333,'test2':555};
local.set('valueA',b);
:
您要做的很简单,可以透明地设置/获取以下任何“类型”:数组、布尔值、日期、浮点值、整数、Null、对象或字符串 [免责声明]我是实用程序的作者[/免责声明] 示例:
localDataStorage.set( 'key1', 'Belgian' );
localDataStorage.set( 'key2', 1200.0047 );
localDataStorage.set( 'key3', true );
localDataStorage.set( 'key4', { 'RSK' : [1,'3',5,'7',9] } );
localDataStorage.set( 'key5', null );
localDataStorage.get( 'key1' ); --> 'Belgian'
localDataStorage.get( 'key2' ); --> 1200.0047
localDataStorage.get( 'key3' ); --> true
localDataStorage.get( 'key4' ); --> Object {RSK: Array(5)}
localDataStorage.get( 'key5' ); --> null
所有的转换工作都是在后台为您完成的:您所要做的就是设置和获取。类型转换是动态执行的。这可能是重复的:基本上,您只能在HTML5 localstorage中存储键/值字符串
localDataStorage.set( 'key1', 'Belgian' );
localDataStorage.set( 'key2', 1200.0047 );
localDataStorage.set( 'key3', true );
localDataStorage.set( 'key4', { 'RSK' : [1,'3',5,'7',9] } );
localDataStorage.set( 'key5', null );
localDataStorage.get( 'key1' ); --> 'Belgian'
localDataStorage.get( 'key2' ); --> 1200.0047
localDataStorage.get( 'key3' ); --> true
localDataStorage.get( 'key4' ); --> Object {RSK: Array(5)}
localDataStorage.get( 'key5' ); --> null