Sort by date Angular 2 pipe

Question

Here is my code:

   {{conv.date | date: \'dd/MM/yyyy | j\'}} - {{conv         


        
                      

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Answer 1

It is strongly suggested not to use such pipes according to Angular Documentation. See https://angular.io/guide/pipes#appendix-no-filterpipe-or-orderbypipe

You can try something like this:

ngOnInit() {
    this.sortedItems = items.sort((a: any, b: any) =>
        new Date(a.date).getTime() - new Date(b.date).getTime()
    );
}

Answer 2

import { Pipe, PipeTransform } from '@angular/core';

@Pipe({
  name: 'sortByDate'
})
export class SortByDatePipe implements PipeTransform {
  transform(value: any, args?: any): any {
    const sortedValues = value.sort((a, b) => new Date(b.createdOn).getTime() - new Date(a.createdOn).getTime());
    return sortedValues;
  }
}

Answer 3

sort-list.pipe.ts

import { Pipe, PipeTransform } from '@angular/core';
@Pipe({
  name: 'sortList'
})
export class SortListPipe implements PipeTransform {
  transform(value: any, args?: any): any {
        if (typeof args[0] === "undefined") {
                return value;
        }
        let direction = args[0][0];
        let column = args.replace('-','');
        value.sort((a: any, b: any) => {
                let left = Number(new Date(a[column]));
                let right = Number(new Date(b[column]));
                return (direction === "-") ? right - left : left - right;
        });
        return value;
    }
}

product-list.component.html

/*
Ascending Order: create_date
Descending Order: -create_date
*/
<ul>
    <li *ngFor="let item of productList | sortList : '-create_date'>
</ul>