添加了JSON属性的KineticJS对象

Question

我正在尝试将KineticJS对象（带有一个添加的属性）序列化为JSON，但是如果我调用JSON.stringify(test);，它只返回KineticJS对象的JSON表示而没有添加属性。有人知道吗，请问哪里有问题？

 test = new Kinetic.Line(
                {
                    points : [ 29, 30, 31, 32 ],
                    stroke : 'black',
                    strokeWidth : 2,
                    lineJoin : 'round',
                    id : '#line'
                });
 test.obj = "my own property";
 JSON.stringify(test);

返回

{"attrs":{"points":[{"x":29,"y":30},{"x":31,"y":32}],"stroke":"black","strokeWidth":2,"lineJoin":"round","id":"#line"},
"nodeType":"Shape","shapeType":"Line"}"

但我还需要有关test.obj的信息..

Answer 1

你可以这样做：

var test = new Object();

test.kinetic = new Kinetic.Line(
                {
                    points : [ 29, 30, 31, 32 ],
                    stroke : 'black',
                    strokeWidth : 2,
                    lineJoin : 'round',
                    id : '#line'
                });
 test.obj = "my own property";
 console.log(JSON.stringify(test));