RE: RE: JavaScript开发笔记
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RE: JavaScript开发笔记

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Date  new Date() 


var d = new Date();
var d = new Date(milliseconds);
var d = new Date(dateString);
var d = new Date(year, month, day, hours, minutes, seconds, milliseconds);


new Date() //2023-05-16T01:32:00.069Z  object
new Date().getTime()  //1684201632279 number
new Date().toISOString()  //使用 ISO 标准将日期作为字符串返回, 2023-05-16T01:49:46.959Z string
new Date().toISOString().split('.')[0]  //2023-05-16T01:49:46 string
new Date().toLocaleTimeString() //使用区域设置约定将 Date 对象的时间部分作为字符串返回,09:55:15 string
new Date().toLocaleDateString() //使用区域设置约定将 Date 对象的日期部分作为字符串返回, 2023/5/16 string
new Date().toJSON() //2023-05-16T02:05:49.250Z string


Date.now() //1684200720073  number
   1970  1  1  00:00:00 (UTC)