如何在JavaScript对象中添加属性？

Question

我有一个 JavaScript 对象：

var credentials = 
{ 
    uid: response.authResponse.userID, 
    accessToken: response.authResponse.accessToken 
};

如何添加此对象name: response.something？

Answer 1

JavaScript对象是动态的。这意味着您可以随时添加任何属性，只需执行以下操作：

credentials.name = response.something;

或等效地：

credentials['name'] = response.something;

仅限ECMAScript 5：

Object.defineProperty( credentials, "name", {
    value: response.something,
    writable: true,
    enumerable: true,
    configurable: true
});