javascript – 我可以在这种情况下引用密钥吗？

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所以我有一个类似的数据结构

    this.PauseFunctions = {
        2: {
            OnSlideTo: function () {
                console.log("The OnSlideTo function of the event at the 2-second mark was called");
            },
            OnSlideAway: function () {
                console.log("The OnSlideAway function of the event at the 2-second mark was called");
            }
        },
        5: {
            OnSlideTo: function () {
                console.log("The OnSlideTo function of the event at the 5-second mark was called");
            },
            OnSlideAway: function () {
                console.log("The OnSlideAway function of the event at the 5-second mark was called");
            }
        }
    };

我想知道我是否有可能引用其值为包含OnSlideTo函数的对象的键.例如,在

        2: {
            OnSlideTo: function () {
                console.log("The OnSlideTo function of the event at the 2-second mark was called");
            },
            OnSlideAway: function () {
                console.log("The OnSlideAway function of the event at the 2-second mark was called");
            }
        }

我想知道是否有办法改变它

        2: {
            OnSlideTo: function () {
                console.log("The OnSlideTo function of the event at the " + key + "-second mark was called");
            },
            OnSlideAway: function () {
                console.log("The OnSlideAway function of the event at the " key + "-second mark was called");
            }
        }

key为2,这样我的程序可以更通用和可维护.

解决方法:

当然,但是在定义值之后你必须这样做,然后为键值设定种子.它应该不会太复杂,只需在填充密钥后进行简单的for循环.

var temp = new function(){

    this.PauseFunctions = {
        2: {
            //Key:,
            OnSlideTo: function () {
                console.log("The OnSlideTo function of the event at the "+this.Key+"-second mark was called");
            },
            OnSlideAway: function () {
                console.log("The OnSlideAway function of the event at the "+this.Key+"-second mark was called");
            }
        },
        5: {
            //Key:,
            OnSlideTo: function () {
                console.log("The OnSlideTo function of the event at the "+this.Key+"-second mark was called");
            },
            OnSlideAway: function () {
                console.log("The OnSlideAway function of the event at the "+this.Key+"-second mark was called");
            }
        }
    };

    //seed key value
    for(var key in this.PauseFunctions){
        this.PauseFunctions[key].Key = key;
    }
};
temp.PauseFunctions[2].OnSlideTo();

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