使用 PUSH 时不了解Node.js结果

Question

我正在研究Alexa Skill lambda，并创建了小代码片段来说明我的问题：

exports.handler = function(event, context)
{
//CREATE A MODEL
var model1 = {"endpoints":[ ]};
//CREATE ANOTHER MODEL  
var model2 = {"endpointid": "stuff"};
//CREATE THE RESULT
var result = model1;
model2.endpointid="switch1";
result.endpoints.push(model2);
model2.endpointid="switch2";
result.endpoints.push(model2);
var  json = JSON.stringify(result);
context.succeed({json});
};

响应：

{
"json": "{"endpoints":[{"endpointid":"switch2"},{"endpointid":"switch2"}]}"
}

问题：为什么我得到两个相同的endpointid？

Answer 1

这有效，但我并不觉得它那么优雅：

exports.handler = function(event, context)
{
//CREATE A MODEL
var model1 = {"endpoints":[ ]};
//CREATE ANOTHER MODEL  
var model2 = {"endpointid": "stuff"};
//CREATE THE RESULT
model1.endpoints.push(model2);
model1.endpoints.push(model2);
model1.endpoints[0]="switch1";
model1.endpoints[1]="switch2";
var  json = JSON.stringify(model1);
context.succeed({json});

响应："json"： "{\"endpoints\"：[\"switch1\"，\"switch2\"]}">

Answer 2

如果你是 JAVA 和 node 的新手，肯定有点难以理解.js：

exports.handler = function(event, context)
{
//CREATE A MODEL
var model1 = {"endpoints":[ ]};
//CREATE ANOTHER MODEL  
var model2 = {"endpointid": "stuff","friendly Name": "name"};
//CREATE THE RESULT

var  _copy1ofModel2 =JSON.parse (JSON.stringify (model2));
var  _copy2ofModel2 =JSON.parse (JSON.stringify (model2));
_copy1ofModel2.endpointid = "switch 1";
_copy2ofModel2.endpointid = "switch 2";
model1.endpoints.push(_copy1ofModel2);
model1.endpoints.push(_copy2ofModel2);

var  json = JSON.stringify(model1);
context.succeed({json});

};

响应： { "json"： "{\"endpoints\"：[{\"endpointid\"：\"switch 1"，\"friendly Name\"：\"name\"}，{\"endpointid\"：\"switch 2\"，\"friendly Name"：\"name\"}]}"。

感谢eebbesen让我朝着正确的方向看。