javascript 如何将一个对象的元素推入另一个对象？
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How to push elements of an object into another object?
提问by Rana Mallah
Like in arrays we can add new elements by using array.push(item). How to do the same with objects? And can it be done inside the object? Like:
就像在数组中一样，我们可以使用 array 添加新元素.push(item)。如何做同样的事情objects？并且可以在对象内部完成吗？喜欢：
var myObject={apple: "a", orange: "o"};
var anothObject = {lemon: "l", myObject};
采纳答案by Jonathan.Brink
You can use jQuery's extend function: http://api.jquery.com/jquery.extend/
您可以使用 jQuery 的扩展功能：http: //api.jquery.com/jquery.extend/
var object1 = {
apple: 0,
banana: { weight: 52, price: 100 },
cherry: 97
};
var object2 = {
banana: { price: 200 },
durian: 100
};
// Merge object2 into object1
$.extend( object1, object2 );
回答by vjdhama
You could add some properties of an object simply like this :
您可以像这样简单地添加对象的一些属性：
obj = {a : "1", b : "2"};
myObj = {c: "3", d : "4"};
myObj.a = obj.a;
myObj.b = obj.b;
Update:
更新：
In that case just do this :
在这种情况下，只需这样做：
for(var prop in obj) myObj[prop] = obj[prop];
And to filter out the unwanted properties inside the loop body you could also do this :
为了过滤掉循环体内不需要的属性，你也可以这样做：
for (var prop in obj) {
if (obj.hasOwnProperty(prop)) {
myObj[prop] = obj[prop];
}
}
回答by xor
To copy all elements of one object to another object, use Object.assign:
要将一个对象的所有元素复制到另一个对象，请使用Object.assign：
var myObject = { apple: "a", orange: "o" };
var anothObject = Object.assign( { lemon: "l" }, myObject );
Or, more elegantly ES6 style using spread ...operator:
或者，使用扩展...运算符更优雅的 ES6 风格：
var myObject = { apple: "a", orange: "o" };
var anothObject = { lemon: "l", ...myObject };
Note however, that while I write this, this is still in proposal stage, although support is quite widespread (it works in my browser).
但是请注意，虽然我写这篇文章，但它仍处于提案阶段，尽管支持非常广泛（它在我的浏览器中有效）。
回答by Olivia O.
A non-jquery option: you could iterate of the keys of the object to be merged.
非 jquery 选项：您可以迭代要合并的对象的键。
var myObject={apple: "a", orange: "o"};
var anothObject = {lemon: "l"};
Object.keys(myObject).forEach(function(key) {
anothObject[key] = myObject[key];
});
At the end of the loop anothObjectis {lemon: "l", apple: "a", orange: "o"}
在循环的末尾anothObject是{lemon: "l", apple: "a", orange: "o"}
回答by Trott
var myObject={apple: "a", orange: "o"};
myObject.lemon = 1; // myObject is now {apple: "a", orange: "o", lemon: 1}
回答by Adem ?lhan
You can use jQuery.extend()function
您可以使用jQuery.extend()功能
var myObject={apple: "a", orange: "o"};
var anothObject = {lemon: "l"};
jQuery.extend(myObject, anothObject);
console.log(myObject);
