const dateFromAPI = "2016-01-02T12:30:00Z";const localDate = new Date(dateFromAPI);const localDateString = localDate.toLocaleDateString(undefined, {day: 'numeric',month: 'short',year: 'numeric',});const localTimeString = localDate.toLocaleTimeString(undefined, {hour: '2-digit',minute: '...
new Date()Creates a new Date object constructorCreates a new Date object constructorReturns the function that created the Date prototype getDate()Returns the day of the month (from 1-31) getDay()Returns the day of the week (from 0-6) ...
import dayjs from "dayjs"; import weekOfYear from "dayjs/plugin/weekOfYear"; dayjs.extend(weekOfYear); dayjs("2021-09-13 14:00:00").week(); // 输出: 38 3. IsSameOrAfter 查看文档 检查一个日期是否等于或者大于一个日期 import dayjs from "dayjs"; import isSameOrAfter from "day...
newDate();newDate(value);newDate(dateString);newDate(year,monthIndex[,day[,hours[,minutes[,seconds[,milliseconds]]]); 1. 2. 3. 4. 注意, 创建一个新Date对象的唯一方法是通过 new 操作符,例如:let now = new Date(); 若将它作为常规函数调用(即不加 new 操作符),将返回一个字符串,而非 Da...
It then defines a JavaScript function named "long_Days()" with one parameter 'dt', representing a Date object. Inside the long_Days function: It retrieves the day of the week (0 for Sunday, 1 for Monday, ..., 6 for Saturday) from the provided Date object 'dt' using the "getDay(...
The getDay() Method ThegetDay()method returns the weekday of a date as a number (0-6). Note In JavaScript, the first day of the week (day 0) is Sunday. Some countries in the world consider the first day of the week to be Monday. ...
日期类型函数(Date Functions) 逻辑判断型函数(Logic Functions) 特殊的函数(Special Functions) 文件处理类函数(File Functions) 字符串类型函数(String Functions) 顾名思义,字符串类型的函数肯定是针对字符串类型的参数、变量进行处理操作的函数 日期转字符串(date2str) 日期转字符串函数date2str主要有4个方法,分别...
/*! * Get the date for a specific day of the week * (c) 2021 Chris Ferdinandi, MIT License, https://gomakethings.com * @param {String} dayName The day of the week (case-insensitive) * @return {Date} The date object */ function getNextDay (dayName) { // The current day let...
这是一个模块,用于日期名称和数字之间的转换(由Date的getDay方法返回)。 它的接口由weekDay.name和weekDay.number组成,它将局部绑定名称隐藏在立即调用的函数表达式的作用域内。 代码语言:javascript 代码运行次数:0 运行 AI代码解释 constweekDay=function(){constnames=["Sunday","Monday","Tuesday","Wednesday"...
So, if Date has all that, why use any of the methods? Because you might not want all that stuff every time. What if you want only the day of the week? Then you use getDay() to extract just that day of the week from the Date object. The Date and Time Methods Even before beginn...