Uncaught ReferenceError: __ng_jsonp____req0_finished is not defined at

Question

I have an Angular application and I\'m using JSONP as well.

This is my service:

import { Injectable } from \'@angular/core\';
import { Http, Response, He         


        

Answer 1

Here is my solution:

set a variable:times
export class WikipediaService {
  constructor(private jsonp: Jsonp) {
    this.times=0;}
  search (term: string) {
    let wikiUrl = 'http://en.wikipedia.org/w/api.php';
    let params = new URLSearchParams();
    params.set('search', term); // the user's search value
    params.set('action', 'opensearch');
    params.set('format', 'json');
    params.set('callback', `__ng_jsonp__.__req${this.times}.finished`);
    this.times=this.times+1;
    // TODO: Add error handling
    return this.jsonp
           .get(wikiUrl, { search: params })
           .map(response =>  response.json()[1]);
  }
}