Javascript 如何将javascript对象动态添加到另一个对象
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How can I add javascript object to another object in dynamic
提问by hh54188
Suppose I have several javascript object
假设我有几个 javascript 对象
{"type":"gotopage","target":"undefined"}
{"type":"press","target":"a"}
{"type":"rotate","target":"long"}
How can I add this objects to another object like
如何将此对象添加到另一个对象，例如
config={}
I know how to if each inserted object have a id I can added as:
我知道如果每个插入的对象都有一个 id 我可以添加为：
config["id"]={}
But in this case how can I add objects without id?
但在这种情况下，如何添加没有 id 的对象？
采纳答案by ThiefMaster
I think you are mixing up objects and arrays. Objects have named keys, arrays have numeric keys. You can easily append to an array using .push():
我认为您正在混淆对象和数组。对象有命名键，数组有数字键。您可以使用.push()以下方法轻松附加到数组：
var arr = [];
arr.push("something");
However, for a configuration object as your variable name suggests this is not really useful. You should rather use meaningful names for your options, e.g.:
但是，对于变量名称所暗示的配置对象，这并不是很有用。您应该为您的选项使用有意义的名称，例如：
var config = {
something: 'blah',
foo: 'bar'
};
You can also store an array in your object:
您还可以在对象中存储数组：
config.manyStuff = [];
for(...) {
manyStuff.push(...);
}
回答by Boyo
var obj1 = {"type":"gotopage","target":"undefined"};
var config = {};
config.obj1 = obj1;
You can always add them later.
您可以随时添加它们。
var obj1 = {"type":"gotopage","target":"undefined"};
var config = {};
config.obj1 = obj1;
var obj2 = {"key":"data"};
config.obj2 = obj2;
回答by Joseph
If these data you have are of the same type, then use an array instead:
如果您拥有的这些数据属于同一类型，请改用数组：
var some_data = {"type":"gotopage","target":"undefined"}
var config = [];
var config.push(some_data); //and do this for the rest
And you can access the config items like this:
您可以像这样访问配置项：
var someVariable = config[index]; //where index is a number starting from 0
回答by Rondo
I'm using this utility function:
我正在使用此实用程序功能：
module.exports.combine = function() {
var rv = {};
for (i = 0; i < arguments.length; i++) {
for (thing in arguments[i]) {
rv[thing]=arguments[i][thing];
}
}
return rv;
}
Properties with the same name will be overwritten by properties in later arguments
具有相同名称的属性将被后面参数中的属性覆盖
var util = require('lib/util.js');
console.log(util.combine(
{"1":"one","two":function(){;},
{"four":{"four.5":"four.5-b"}, "5":"foo"}});
result:
结果：
{ '1': 'one',
'5': 'foo',
two: [Function],
four: { 'four.5': 'four.5-b' } }
回答by user2713949
If you want to add object you can easily add using use spread operator.
如果要添加对象，可以使用扩展运算符轻松添加。
Example ->
示例 ->
object1 = { property1: 1, property2: 2}
finalObject = [{...object1}]
finalObject = {...object1}
finalObject = {...object1}
and as per your question solution use array object here
并根据您的问题解决方案在此处使用数组对象
finalObject = [{...object1}]
finalObject = [{...object1}]
object1 = { property1: 1, property2: 2}
finalObject = [{...object1}]
document.getElementById("demo").innerHTML = JSON.stringify(finalObject);<div id = "demo"></div>回答by Krishna
If you are looking to add them during intialization, this might help you out:
如果您希望在初始化期间添加它们，这可能会对您有所帮助：
var config = [
{"type":"gotopage","target":"undefined"},
{"type":"press","target":"a"},
{"type":"rotate","target":"long"}
]
