我的产品类别包含
import React from 'react';
import ReactDOM from 'react-dom';
const App = () =>{
return <div>
<ul>
<li>This is jeff</li>
<li>This is not Jeef</li>
<li>This is Joe</li>
</ul>;
</div>;
};
ReactDOM.render(<App />,document.querySelector('#root'));
我也使用google登录方法,最终返回了以下内容:
String id;
String address;
String image;
bool isFavourite;
String userEmail;
如何将特定用户连接到特定产品?
例如这种方法:
FirebaseUser user = await _auth.signInWithCredential(credential);
print(user.displayName);
return user;
我希望在这里得到3个参数,当前有2个硬编码,并且用户名应该是动态的,基于当前通过登录方法使用的电子邮件登录名,但是我无法访问该用户。displayName / email等等
final Map<String, dynamic> responseData = json.decode(response.body);
final Product addedProduct = Product(
id: responseData['name'],
address: address,
image: image,
userEmail: userEmail //the problem
);
答案 0 :(得分:0)
您可以使用# create some dummy-data for test
mydata = replicate(20, list(matrix(runif(9, 1, 10), ncol = 3)))
class(mydata)
length(mydata)
# to get rowsums for each element of the list we can use lapply in combination with rowsums
# and use cbind to attach it to the current list-object.
mydata.new = lapply(mydata, function(f) cbind(f, rowSums(f)))
# check results
mydata.new[1]
rowSums(mydata[[1]])
的{{1}}属性。检查API docs或直接进入IDE上的源代码。
email