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. E
toGMTString()Deprecated.Use thetoUTCString()method instead toISOString()Returns the date as a string, using the ISO standard toJSON()Returns the date as a string, formatted as a JSON date toLocaleDateString()Returns the date portion of a Date object as a string, using locale conventions ...
Math.[{property | method}] 参数property 必选项。Math 对象的一个属性名。 method 必选项。Math.对象的一个方法名。 说明Math 对象不能用 new 运算符创建,如果试图这样做则给出错误。该对象在装载脚本引擎时由该引擎创建。其所有方法和属性在脚本中总是可用。 演示代码: 代码语言:javascript 代码运行次数:0 ...
The indexOf() method returns the first index at which a given element can be found in the array, or -1 if it is not present. fromIndex可选,表示从这个位置开始搜索,若缺省或格式不合要求,使用默认值0. indexOf()方法返回给定元素能找在数组中找到的第一个索引值,如果没有找到,则返回-1。 mdn ...
JavaScript Date valueOf Method - Learn about the JavaScript Date valueOf method, its syntax, and how to use it to get the primitive value of a Date object.
js-date-format Add format method to Date object in javascript to allow string formatting adds the following methods to a date object: getMonthName([language]) Gets the month name in the specified language. If no language is specified it will default to "en". (eg. January) ...
(Method) Encapsulates the string within an <FONT SIZE="..."> tag context.*/ write(hello.fontsize("5")+"<BR>") /*和Array的slice 一样, fomer包括,latter不包括*/ write("截取第2至第4个字符:"+hello.substring(1,4)+"<BR>") /* myString.substr(aStartPosition, aLength) Argument list:...
js Date function All In One new Date() & new Date & Date() & Date Date.now();// 1625994483254(Date.now()).toLocaleString();// "1,625,994,517,358"(newDate()).toLocaleString();// "7/11/2021, 5:09:01 PM"(newDate).toLocaleString();// "7/11/2021, 5:09:07 PM"newDate;/...
Getting Today’s Date in JS This section demonstrates the default behavior of the Date object by using it in a script with the getElementByID method. You can run this example on your local workstation (where it shows your local date, time, and GMT offset). You can also run the example...
Get the week year in current time zone.This method is identical to getYear() except in cases where the week belongs to the previous or next year, then that value will be used instead.const weekYear = dateTime.getWeekYear();Set WeekSet the week in current time zone....