在JSON中存储未执行的功能

Question

我正在使用Greensock并尝试从存储的JSON数据中实现CustomEase。我遇到的问题是，当您向时间轴添加内容时，您必须这样做：

mainTimeline.to(target, duration, vars);
which would look like this:
mainTimeline.to($(".target", 1, {"opacity":"0","y":"35"});

我遇到的问题是，如果你想使用缓动，它必须包含在“vars”对象中，如下所示：

mainTimeline.to(
    $(".target", 1, {
         "opacity":"0",
         "y":"35", 
         "ease": CustomEase.create('custom','M0,0,C0.104,0.204,0.492,1,1,1')
    });

我遇到的问题是，当我将数据存储在JSON中时，我可以将其存储为字符串，但是当我将其插入到变量中时，它不会执行，因为它将其视为：

"CustomEase.create('custom','M0,0,C0.104,0.204,0.492,1,1,1')"

但是，如果我将它存储为没有引号的函数，那么存储的是从函数返回的数据：

{
    "_calcEnd": true,
    "id": "custom",
    "data": "M0,0,C0.104,0.204,0.492,1,1,1",
    "lookup": [
        {
            "x": 0,
            "cx": 0.017543859649122806,
            "y": 0,
            "cy": 0.0345276089301892,
            "nx": 9
        },
            [...]
        {
            "x": 0.017543859649122806,
            "cx": 0.017543859649122806,
            "y": 0.0345276089301892,
            "cy": 0.03419683114613436,
            "nx": 9
        }
    ],
    "points": [
        {
            "x": 0,
            "y": 0,
            "cx": 0.022788085937499997,
            "cy": 0.0448486328125,
            "n": {
                "x": 0.022788085937499997,
                "y": 0.0448486328125,
                "cx": 0.029204101562499998,
                "cy": 0.05669042968749999,
                "n": {
                    "x": 0.051992187499999995,
                    "y": 0.10153906249999999,
                    "cx": 0.0353798828125,
                    "cy": 0.06649902343749999,
                    },
                        [...]


                    "nx": 0.0873720703125
                },
                "nx": 0.051992187499999995
            },
            "nx": 0.022788085937499997
        },
        null,
        null,
        [...]
        null
    ],
    "fast": true,
    "rawBezier": [
        "0",
        "0",
        "0.104",
        "0.204",
        "0.492",
        "1",
        "1",
        "1"
    ],
    "l": 57
}"

如何将这些数据存储在将要执行的JSON中，直到Greensock函数在没有引号的情况下调用它为止：

mainTimeline.to( $(".target", 1, { "opacity":"0", "y":"35", "ease": CustomEase.create('custom','M0,0,C0.104,0.204,0.492,1,1,1') });