Javascript 在 lodash 中添加对象的新属性
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Add new properties of object in lodash
提问by 07_05_GuyT
I've two objects and I want to add properties from object A to object B and I try with extendwhich doesn't work,do I need to use something different ?
我有两个对象，我想将对象 A 的属性添加到对象 B，我尝试使用不起作用的扩展，我需要使用不同的东西吗？
a = {
name = "value"
name2 = "value2"
}
b = {
name3 = "value"
name4 = "value2"
}
I want that A will contain both
我希望 A 将包含两者
a = {
name = "value"
name2 = "value2"
name3 = "value"
name4 = "value2"
}
回答by T.J. Crowder
_.extend(now called _.assign) is indeed how you do this:
_.extend（现在称为_.assign）确实是您执行此操作的方式：
_.assign(a, b);
Live Example:
现场示例：
var a = {
name: "value",
name2: "value2"
};
var b = {
name3: "value",
name4: "value2"
};
_.assign(a, b);
document.body.insertAdjacentHTML(
"beforeend",
"Result:<pre>" + JSON.stringify(a, null, 2) + "</pre>"
);<script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.16.6/lodash.min.js"></script>回答by Matthias A. Eckhart
First of all, your defined objects are incorrect. Objects must be written as name:valuepairs, separated by a colon(and not by an equality sign). Furthermore, you must use comma separatorsto delimit the properties of the object, like:
首先，您定义的对象不正确。对象必须name:value成对写入，用冒号分隔（而不是等号）。此外，您必须使用逗号分隔符来分隔对象的属性，例如：
var person = {
firstName: "Matthias",
lastName: "Eckhart",
eyeColor: "blue"
};
To extend an object with various properties via lodash, you can use _.assign(object, [sources], [customizer], [thisArg]):
要通过lodash扩展具有各种属性的对象，您可以使用_.assign(object, [sources], [customizer], [thisArg])：
var a = {
name: "value",
name2: "value2"
};
var b = {
name3: "value",
name4: "value2"
};
_.assign(a, b); // extend
console.log(a);<script src="https://raw.githubusercontent.com/lodash/lodash/3.10.1/lodash.min.js"></script>回答by jwkicklighter
I believe you want to use the lodash mergefunction, rather than extend. See: Lodash - difference between .extend() / .assign() and .merge()
我相信您想使用 lodashmerge函数，而不是extend. 请参阅：Lodash - .extend() / .assign() 和 .merge() 之间的区别
