angular pipes
//component.ts file: import {Pipe, PipeTransform} from '@angular/core'; @Pipe ({ name : 'sqrt' }) export class SqrtPipe implements PipeTransform { transform(val : number) : number { return Math.sqrt(val); } } //import SqrtPipe inside your module.ts , import { SqrtPipe } from './app.sqrt'; declarations: [ SqrtPipe, ], //then you can use this pipe in component.html file. // <h2>Square root of 625 is: {{625 | sqrt}}</h2>
