如何在ES5中使用计算的属性名称？ [英] How to use a computed property name in ES5?

问题描述

我想要一个计算出的属性名称。我看到您可以在ES6中使用它。但是它应该与IOS Webview兼容。所以我不能使用ES6。同样，
的计算名称在循环内也将是相同的，如果这样会使人更容易的话。

I would like to have a computed property name. I saw you can have this in ES6. But it should be compatible with IOS Webview. So I can't use ES6. Also the computed name will be ever the same inside the loop, if this makes it easier for somebody.

有任何想法吗？

var today = moment().format('DD.MM.YY');
for (var i = 0; i < 5; i++) {
    initialData.push(
         {
            dates: {
                "01.01.01": false
                 // instead of 01.01.01 i would like to have the value of today as the key
            }
        }
    )
}

推荐答案

您必须在ES5中精心制作：

You have to do it the elaborate way in ES5:

var today  = moment().format('DD.MM.YY');
var obj    = {};
obj[today] = false;
for (var i = 0; i < 5; i++) {
  initialData.push({ dates: obj });
}

（或移动 obj （如果每次迭代都不相同）

(or move the creation of obj inside the loop if it's different for each iteration)

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