如何使用JavaScript将日期添加到当前日期?JavaScript是否有像.NET的AddDay()那样的内置函数?
当前回答
对于不知道如何使其工作的每个人来说:有一个完整的工作代码,它并不完美,但你可以复制过去,它正在工作。
在InDesign中,在“Program Files\Adobe\Adobe InDesign 2021 \scripts\startup scripts”的启动脚本文件夹中创建.jsx。
您可以使用创意云中的Extendescript Toolkit CC制作并粘贴:
restart-design和jjmmyyyy+30应该在texte变量中。这将显示这样的日期jj/m/yyyy-idk,如何将其显示为2021 7月24日,而不是2021 7月24号,但对我来说已经足够了。
#targetengine 'usernameVariable'
function addVariables(openEvent)
{
var doc = openEvent.parent;
while ( doc.constructor.name != "Document" )
{
if ( doc.constructor.name == "Application" ){ return; }
doc = doc.parent;
}
// from http://stackoverflow.com/questions/563406/add-days-to-datetime
var someDate = new Date();
var numberOfDaysToAdd = 30;
someDate.setDate(someDate.getDate() + numberOfDaysToAdd);
var dd = someDate.getDate();
var mm = someDate.getMonth() + 1;
var y = someDate.getFullYear();
var someFormattedDate = dd + '/'+ mm + '/'+ y;
createTextVariable(doc, "jjmmyyyy+30", someFormattedDate);
}
function createTextVariable(target, variableName, variableContents)
{
var usernameVariable = target.textVariables.itemByName(variableName);
if (!usernameVariable.isValid)
{
usernameVariable = target.textVariables.add();
usernameVariable.variableType = VariableTypes.CUSTOM_TEXT_TYPE;
usernameVariable.name = variableName;
}
usernameVariable.variableOptions.contents = variableContents;
}
app.addEventListener('afterOpen', addVariables);
其他回答
我已经用这种方法在一行中找到了正确的日期,以获得时间加上人们上面所说的一天。
((new Date()).setDate((new Date()).getDate()+1))
我只是想建立一个正常的(新日期()):
(new Date()).getDate()
> 21
使用上面的代码,我现在可以在(newDate())中的Date()中设置所有这些,并且它的行为正常。
(new Date(((new Date()).setDate((new Date()).getDate()+1)))).getDate()
> 22
或获取Date对象:
(new Date(((new Date()).setDate((new Date()).getDate()+1))))
我的测试示例可以在日期对象的同一实例中执行减号。
Date.prototype.reset=函数(){let newDate=新日期(this.timeStamp)this.setFullYear(newDate.getFullYear)this.setMonth(newDate.getMonth())this.setDate(newDate.getDate())this.setHours(newDate.getHours())this.set分钟(newDate.getMinutes())this.setSeconds(newDate.getSeconds())this.set毫秒(newDate.getMilliseconds())}Date.prototype.addDays=函数(天){this.timeStamp=此[Symbol.toPrimitive]('编号')let daysInMiliseconds=(天*(1000*60*60*24))this.timeStamp=this.timeStamp+天毫秒this.reset()}Date.prototype.minusDays=函数(天){this.timeStamp=此[Symbol.toPrimitive]('编号')let daysInMiliseconds=(天*(1000*60*60*24))如果(daysInMiliseconds<=this.timeStamp){this.timeStamp=this.timeStamp-天毫秒this.reset()}}var temp=新日期(Date.now())//从现在开始console.log(temp.toDateString())临时添加天数(31)console.log(temp.toDateString())温度-天(5)console.log(temp.toDateString())
以下是在Javascript中为特定日期添加日期、月份和年份的方法。
// To add Days
var d = new Date();
d.setDate(d.getDate() + 5);
// To add Months
var m = new Date();
m.setMonth(m.getMonth() + 5);
// To add Years
var y = new Date();
y.setFullYear(y.getFullYear() + 5);
不,javascript没有内置函数,但是您可以使用一行简单的代码
timeObject.setDate(timeObject.getDate() + countOfDays);
一些扩展Date的实现https://gist.github.com/netstart/c92e09730f3675ba8fb33be48520a86d
/**
* just import, like
*
* import './../shared/utils/date.prototype.extendions.ts';
*/
declare global {
interface Date {
addDays(days: number, useThis?: boolean): Date;
addSeconds(seconds: number): Date;
addMinutes(minutes: number): Date;
addHours(hours: number): Date;
addMonths(months: number): Date;
isToday(): boolean;
clone(): Date;
isAnotherMonth(date: Date): boolean;
isWeekend(): boolean;
isSameDate(date: Date): boolean;
getStringDate(): string;
}
}
Date.prototype.addDays = function(days: number): Date {
if (!days) {
return this;
}
this.setDate(this.getDate() + days);
return this;
};
Date.prototype.addSeconds = function(seconds: number) {
let value = this.valueOf();
value += 1000 * seconds;
return new Date(value);
};
Date.prototype.addMinutes = function(minutes: number) {
let value = this.valueOf();
value += 60000 * minutes;
return new Date(value);
};
Date.prototype.addHours = function(hours: number) {
let value = this.valueOf();
value += 3600000 * hours;
return new Date(value);
};
Date.prototype.addMonths = function(months: number) {
const value = new Date(this.valueOf());
let mo = this.getMonth();
let yr = this.getYear();
mo = (mo + months) % 12;
if (0 > mo) {
yr += (this.getMonth() + months - mo - 12) / 12;
mo += 12;
} else {
yr += ((this.getMonth() + months - mo) / 12);
}
value.setMonth(mo);
value.setFullYear(yr);
return value;
};
Date.prototype.isToday = function(): boolean {
const today = new Date();
return this.isSameDate(today);
};
Date.prototype.clone = function(): Date {
return new Date(+this);
};
Date.prototype.isAnotherMonth = function(date: Date): boolean {
return date && this.getMonth() !== date.getMonth();
};
Date.prototype.isWeekend = function(): boolean {
return this.getDay() === 0 || this.getDay() === 6;
};
Date.prototype.isSameDate = function(date: Date): boolean {
return date && this.getFullYear() === date.getFullYear() && this.getMonth() === date.getMonth() && this.getDate() === date.getDate();
};
Date.prototype.getStringDate = function(): string {
// Month names in Brazilian Portuguese
const monthNames = ['Janeiro', 'Fevereiro', 'Março', 'Abril', 'Maio', 'Junho', 'Julho', 'Agosto', 'Setembro', 'Outubro', 'Novembro', 'Dezembro'];
// Month names in English
// let monthNames = ['January', 'February', 'March', 'April', 'May', 'June', 'July', 'August', 'September', 'October', 'November', 'December'];
const today = new Date();
if (this.getMonth() === today.getMonth() && this.getDay() === today.getDay()) {
return 'Hoje';
// return "Today";
} else if (this.getMonth() === today.getMonth() && this.getDay() === today.getDay() + 1) {
return 'Amanhã';
// return "Tomorrow";
} else if (this.getMonth() === today.getMonth() && this.getDay() === today.getDay() - 1) {
return 'Ontem';
// return "Yesterday";
} else {
return this.getDay() + ' de ' + this.monthNames[this.getMonth()] + ' de ' + this.getFullYear();
// return this.monthNames[this.getMonth()] + ' ' + this.getDay() + ', ' + this.getFullYear();
}
};
export {};