Question

我有一个从实体框架5返回来自SQL Server数据库的以下javascript对象。

var a =
 {
  "questionId":14,
  "questionStatusId":1,
  "answers":null
 }

var b =
 {
  "questionId":15,
  "questionStatusId":1,
  "answers":[
   {"answerId":34,"correct":true,"response":false,"text":"5","image":null,"questionId":15},
   {"answerId":35,"correct":false,"response":false,"text":"50","image":null,"questionId":15}]
 }

我想添加一个空的答案对象，然后通过PUT发送回服务器。

如何将答案对象添加到变量a和变量b？

Answer 1

var answer=[];
a.push( { "answer":answer } );
b.push( { "answer":answer } );

Answer 2

像

这样的东西

var newAnswer = {"answerId":0,"correct":false,"response":false,"text":"","image":null,"questionId":0};
b.answers.push(newAnswer);

可能就是你要找的东西。

Answer 3

您可以在JavaScript中在运行时添加对象的属性。例如

var a = { f : 10, g : 20 };
a.h = 30;

同样，只需将答案属性添加到您的a＆amp; b带有空白物体。

a.answer = []; // Empty non null array
b.answer = []; // "

如何在Javascript中向对象添加对象？

3 个答案: