Created
August 30, 2019 18:44
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Fecha Relativa Pipe (Angular 2+)
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/* | |
Basado en https://medium.com/@thunderroid/angular-date-ago-pipe-minutes-hours-days-months-years-ago-c4b5efae5fe5 | |
*/ | |
import { Pipe, PipeTransform } from '@angular/core'; | |
@Pipe({ | |
name: 'fechaRelativa', | |
pure: false | |
}) | |
export class FechaRelativaPipe implements PipeTransform { | |
transform(value: Date, args?: any): any { | |
if (value) { | |
const seconds = Math.floor((+new Date() - + value) / 1000); | |
if (seconds < 29) // less than 30 seconds ago will show as 'Just now' | |
return 'Ahora mismo'; | |
const intervals = { | |
'año': 31536000, | |
'mes': 2592000, | |
'semana': 604800, | |
'dia': 86400, | |
'hora': 3600, | |
'minuto': 60, | |
'second': 1 | |
}; | |
const plurals = { | |
'año': 'años', | |
'mes': 'meses', | |
'semana': 'semanas', | |
'dia': 'días', | |
'hora': 'horas', | |
'minuto': 'minutos', | |
'second': 'segundos' | |
}; | |
const articuloSingular = { | |
'año': 'un', | |
'mes': 'un', | |
'semana': 'una', | |
'dia': 'un', | |
'hora': 'una', | |
'minuto': 'un', | |
'second': 'un' | |
}; | |
let counter; | |
for (const i in intervals) { | |
counter = Math.floor(seconds / intervals[i]); | |
if (counter > 0) | |
if (counter === 1) { | |
return 'hace ' + articuloSingular[i] + ' ' + i ; // singular (hace un/una {intervalo}) | |
} else { | |
return 'hace ' + counter + ' ' + plurals[i] ; // plural (hace {cant} {intervaloplural}) | |
} | |
} | |
} | |
return value; | |
} | |
} |
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