javascript - 最快创建新日期

Question

我的代码中需要一个new Date()，并且绝对不关心它将创建哪个日期/时间，因为我将在之后设置日期和时间。我只需要一个新对象。怎么做？因为new Date()会检查实际时间。我可以创建一些默认日期吗？

Answer 1

尝试这个变体: 新日期(0)

来自此来源: https://developer.mozilla.org/en/docs/Web/JavaScript/Reference/Global_Objects/Date

JavaScript Date objects can only be instantiated by calling JavaScript Date as a constructor: calling it as a regular function (i.e. without the new operator) will return a string rather than a Date object; unlike other JavaScript object types, JavaScript Date objects have no literal syntax.

If no arguments are provided, the constructor creates a JavaScript Date object for the current date and time according to system settings.

这意味着 0 参数确实可以提高性能。