2.3. Pipe First Letter - quan1997ap/angular-app-note GitHub Wiki

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

@Pipe({ name: 'firstLetter' })

export class FirstLetterPipe implements PipeTransform {

transform(value: any, args?: any): any { return value.split(' ').map(n => n[0]).join(''); } }