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calculate x time ago from date angular

Dee Boss answered on August 9, 2022 Popularity 1/10 Helpfulness 1/10

answer calculate x time ago from date angular

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calculate x time ago from date angular

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

@Pipe({

    name: 'dateAgoExample',

    pure: true

})

export class DateAgoExaple implements PipeTransform {

    transform(value: any, args?: any): any {

        if (value) {

            const seconds = Math.floor((+new Date() - +new Date(value)) / 1000);

            if (seconds < 29) // less than 30 seconds ago will show as 'Just now'

                return 'Just now';

            const intervals = {

                'year': 31536000,

                'month': 2592000,

                'week': 604800,

                'day': 86400,

                'hour': 3600,

                'minute': 60,

                'second': 1

            };

            let counter;

            for (const i in intervals) {

                counter = Math.floor(seconds / intervals[i]);

                if (counter > 0)

                    if (counter === 1) {

                        return counter + ' ' + i + ' ago'; // singular (1 day ago)

                    } else {

                        return counter + ' ' + i + 's ago'; // plural (2 days ago)

                    }

            }

        }

        return value;

    }

}

Popularity 1/10 Helpfulness 1/10 Language typescript

Source: www.findandsolve.com

Tags: angular date time typescript

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Contributed on Aug 09 2022

Dee Boss

0 Answers Avg Quality 2/10

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calculate x time ago from date angular

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import {Pipe, ChangeDetectorRef} from 'angular2/core';
import {Observable} from 'rxjs/Observable';
import {AsyncPipe} from 'angular2/common';

@Pipe({
    name: 'messageTime',
    pure: false
})
export class MessageTimePipe extends AsyncPipe
{
    value:Date;
    timer:Observable<string>;

    constructor(ref:ChangeDetectorRef)
    {
        super(ref);
    }

    transform(obj:any, args?:any[]):any
    {
        if (obj instanceof Date)
        {
            this.value = obj;

            if(!this.timer)
            {
                this.timer = this.getObservable();
            }

            return super.transform(this.timer, args);
        }

        return super.transform(obj, args);
    }

    private getObservable()
    {
        return Observable.interval(1000).startWith(0).map(()=>
        {
            var result:string;
            // current time
            let now = new Date().getTime();

            // time since message was sent in seconds
            let delta = (now - this.value.getTime()) / 1000;

            // format string
            if (delta < 10)
            {
                result = 'jetzt';
            }
            else if (delta < 60)
            { // sent in last minute
                result = 'vor ' + Math.floor(delta) + ' Sekunden';
            }
            else if (delta < 3600)
            { // sent in last hour
                result = 'vor ' + Math.floor(delta / 60) + ' Minuten';
            }
            else if (delta < 86400)
            { // sent on last day
                result = 'vor ' + Math.floor(delta / 3600) + ' Stunden';
            }
            else
            { // sent more than one day ago
                result = 'vor ' + Math.floor(delta / 86400) + ' Tagen';
            }
            return result;
        });
    };
}

Popularity 1/10 Helpfulness 1/10 Language javascript

Source: stackoverflow.com

Tags: javascript time angular date

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Contributed on Aug 09 2022

Dee Boss

0 Answers Avg Quality 2/10

calculate x time ago from date angular

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