问题
I\'m using the date pipe to format my date, but I just can\'t get the exact format I want without a workaround. Am I understanding pipes wrongly or is just not possible?
//our root app component
import {Component} from \'angular2/core\'
@Component({
selector: \'my-app\',
providers: [],
template: `
<div>
<h2>Hello {{name}}</h2>
<h3>{{date | date: \'ddMMyyyy\'}}, should be
{{date | date: \'dd\'}}/{{date | date:\'MM\'}}/{{date | date: \'yyyy\'}}</h3>
</div>
`,
directives: []
})
export class App {
constructor() {
this.name = \'Angular2\'
this.date = new Date();
}
}
plnkr view
回答1:
Pipe date format bug fixed in Angular 2.0.0-rc.2, this Pull Request.
Now we can do the conventional way:
{{valueDate | date: 'dd/MM/yyyy'}}
Examples:
Current Version:
Example Angular 8.x.x
Old Versions:
Example Angular 7.x
Example Angular 6.x
Example Angular 4.x
Example Angular 2.x
More info in documentation DatePipe
回答2:
Import DatePipe from angular/common and then use the below code:
var datePipe = new DatePipe();
this.setDob = datePipe.transform(userdate, 'dd/MM/yyyy');
where userdate will be your date string. See if this helps.
Make note of the lowercase for date and year :
d- date
M- month
y-year
EDIT
You have to pass locale string as an argument to DatePipe, in latest angular. I have tested in angular 4.x
For Example:
var datePipe = new DatePipe('en-US');
回答3:
You can achieve this using by a simple custom pipe.
import { Pipe, PipeTransform } from '@angular/core';
import { DatePipe } from '@angular/common';
@Pipe({
name: 'dateFormatPipe',
})
export class dateFormatPipe implements PipeTransform {
transform(value: string) {
var datePipe = new DatePipe("en-US");
value = datePipe.transform(value, 'dd/MM/yyyy');
return value;
}
}
{{currentDate | dateFormatPipe }}
Advantage of using a custom pipe is that, if you want to update the date format in future, you can go and update your custom pipe and it will reflect every where.
Custom Pipe examples
回答4:
I always use Moment.js when I need to use dates for any reason.
Try this:
import { Pipe, PipeTransform } from '@angular/core'
import * as moment from 'moment'
@Pipe({
name: 'formatDate'
})
export class DatePipe implements PipeTransform {
transform(date: any, args?: any): any {
let d = new Date(date)
return moment(d).format('DD/MM/YYYY')
}
}
And in the view:
<p>{{ date | formatDate }}</p>
回答5:
I am using this Temporary Solution:
import {Pipe, PipeTransform} from "angular2/core";
import {DateFormatter} from 'angular2/src/facade/intl';
@Pipe({
name: 'dateFormat'
})
export class DateFormat implements PipeTransform {
transform(value: any, args: string[]): any {
if (value) {
var date = value instanceof Date ? value : new Date(value);
return DateFormatter.format(date, 'pt', 'dd/MM/yyyy');
}
}
}
回答6:
If anyone looking with time and timezone, this is for you
{{data.ct | date :'dd-MMM-yy h:mm:ss a '}}
add z for time zone at the end of date and time format
{{data.ct | date :'dd-MMM-yy h:mm:ss a z'}}
回答7:
The only thing that worked for me was inspired from here: https://stackoverflow.com/a/35527407/2310544
For pure dd/MM/yyyy, this worked for me, with angular 2 beta 16:
{{ myDate | date:'d'}}/{{ myDate | date:'MM'}}/{{ myDate | date:'y'}}
回答8:
I think that it's because the locale is hardcoded into the DatePipe. See this link:
- https://github.com/angular/angular/blob/master/modules/%40angular/common/src/pipes/date_pipe.ts
And there is no way to update this locale by configuration right now.
回答9:
If anyone can looking to display date with time in AM or PM in angular 6 then this is for you.
{{date | date: 'dd/MM/yyyy hh:mm a'}}
Output
Pre-defined format options
Examples are given in en-US locale.
'short': equivalent to 'M/d/yy, h:mm a' (6/15/15, 9:03 AM).
'medium': equivalent to 'MMM d, y, h:mm:ss a' (Jun 15, 2015, 9:03:01 AM).
'long': equivalent to 'MMMM d, y, h:mm:ss a z' (June 15, 2015 at 9:03:01 AM GMT+1).
'full': equivalent to 'EEEE, MMMM d, y, h:mm:ss a zzzz' (Monday, June 15, 2015 at 9:03:01 AM GMT+01:00).
'shortDate': equivalent to 'M/d/yy' (6/15/15).
'mediumDate': equivalent to 'MMM d, y' (Jun 15, 2015).
'longDate': equivalent to 'MMMM d, y' (June 15, 2015).
'fullDate': equivalent to 'EEEE, MMMM d, y' (Monday, June 15, 2015).
'shortTime': equivalent to 'h:mm a' (9:03 AM).
'mediumTime': equivalent to 'h:mm:ss a' (9:03:01 AM).
'longTime': equivalent to 'h:mm:ss a z' (9:03:01 AM GMT+1).
'fullTime': equivalent to 'h:mm:ss a zzzz' (9:03:01 AM GMT+01:00).
Reference Link
回答10:
Date pipes does not behave correctly in Angular 2 with Typescript for Safari browser on MacOS and iOS. I faced this issue recently. I had to use moment js here for resolving the issue. Mentioning what I have done in short...
Add momentjs npm package in your project.
Under xyz.component.html, (Note here that startDateTime is of data type string)
{{ convertDateToString(objectName.startDateTime) }}
- Under xyz.component.ts,
import * as moment from 'moment';
convertDateToString(dateToBeConverted: string) {
return moment(dateToBeConverted, "YYYY-MM-DD HH:mm:ss").format("DD-MMM-YYYY");
}
回答11:
You can find more information about the date pipe here, such as formats.
If you want to use it in your component, you can simply do
pipe = new DatePipe('en-US'); // Use your own locale
Now, you can simply use its transform method, which will be
const now = Date.now();
const myFormattedDate = this.pipe.transform(now, 'short');
回答12:
You can also use momentjs for this sort of things. Momentjs is best at parse, validate, manipulate, and display dates in JavaScript.
I used this pipe from Urish, which works fine for me:
https://github.com/urish/angular2-moment/blob/master/src/DateFormatPipe.ts
In the args parameter you can put your date format like: "dd/mm/yyyy"
回答13:
Angular: 8.2.11
<td>{{ data.DateofBirth | date }}</td>
Output: Jun 9, 1973
<td>{{ data.DateofBirth | date: 'dd/MM/yyyy' }}</td>
Output: 09/06/1973
<td>{{ data.DateofBirth | date: 'dd/MM/yyyy hh:mm a' }}</td>
Output: 09/06/1973 12:00 AM
回答14:
In my case, I use in component file:
import {formatDate} from '@angular/common';
// Use your preferred locale
import localeFr from '@angular/common/locales/fr';
import { registerLocaleData } from '@angular/common';
// ....
displayDate: string;
registerLocaleData(localeFr, 'fr');
this.displayDate = formatDate(new Date(), 'EEEE d MMMM yyyy', 'fr');
And in the component HTML file
<h1> {{ displayDate }} </h1>
It works fine for me ;-)
回答15:
You have to pass the locale string as an argument to DatePipe.
var ddMMyyyy = this.datePipe.transform(new Date(),"dd-MM-yyyy");
Pre-defined format options:
1. 'short': equivalent to 'M/d/yy, h:mm a' (6/15/15, 9:03 AM).
2. 'medium': equivalent to 'MMM d, y, h:mm:ss a' (Jun 15, 2015, 9:03:01 AM).
3. 'long': equivalent to 'MMMM d, y, h:mm:ss a z' (June 15, 2015 at 9:03:01 AM GMT+1).
4. 'full': equivalent to 'EEEE, MMMM d, y, h:mm:ss a zzzz' (Monday, June 15, 2015 at 9:03:01 AM GMT+01:00).
5. 'shortDate': equivalent to 'M/d/yy' (6/15/15).
6. 'mediumDate': equivalent to 'MMM d, y' (Jun 15, 2015).
7. 'longDate': equivalent to 'MMMM d, y' (June 15, 2015).
8. 'fullDate': equivalent to 'EEEE, MMMM d, y' (Monday, June 15, 2015).
9. 'shortTime': equivalent to 'h:mm a' (9:03 AM).
10. 'mediumTime': equivalent to 'h:mm:ss a' (9:03:01 AM).
11. 'longTime': equivalent to 'h:mm:ss a z' (9:03:01 AM GMT+1).
12. 'fullTime': equivalent to 'h:mm:ss a zzzz' (9:03:01 AM GMT+01:00).
add datepipe in app.component.module.ts
import { BrowserModule } from '@angular/platform-browser';
import { NgModule } from '@angular/core';
import {DatePipe} from '@angular/common';
@NgModule({
declarations: [
AppComponent
],
imports: [
BrowserModule
],
providers: [
DatePipe
],
bootstrap: [AppComponent]
})
export class AppModule { }
can you see: how to date format use datepipe in angular
来源：https://stackoverflow.com/questions/35754586/format-date-as-dd-mm-yyyy-using-pipes