An Angular service to parse and get specific query parameters from URI

query-param.service.ts

import {URLSearchParams} from '@angular/http';

export class QueryParamService {

  get(name: string) {
    const params = new URLSearchParams(window.location.search.substring(1));
    const param = params.get(name);
    return param === null ? null : decodeURIComponent(param);
  }

}