import {PipeTransform, Pipe} from 'angular2/core';

@Pipe({
    name: 'formatDate'
})

export class FormatDatePipe implements PipeTransform {
    transform(value: string): any {
        let date: string;
        try {
            date = new Date(value).toLocaleDateString();
        }
        catch (Exception) {
            return value;
        }
        finally {
            return date;
        }
    }

try {
    date = new Date(value).toLocaleDateString();
    if (date === "Invalid Date") {
        throw new Error(`invalid date value ${ value }`);
    }
}