import { Pipe, PipeTransform } from '@angular/core'; @Pipe({ name: 'parameters' }) export class ParametersPipe implements PipeTransform { transform(value: {name: string, range: object}[]): string { return `{${value.map(e => `${e.name}: <${JSON.stringify(e.range).replace('{}', 'any').replace(/["{}]/g, '')}>`).join(', ')}}`; } }