shorcut for angular debugging

alias window.vm(sel) to window.ng.probe(document.querySelector(sel)).context and get meaningfull errors in case something goes wrong

You will need to install an extension such as Tampermonkey, Greasemonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Userscripts to install this script.

You will need to install an extension such as Tampermonkey to install this script.

You will need to install a user script manager extension to install this script.

(I already have a user script manager, let me install it!)

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

(I already have a user style manager, let me install it!)

// ==UserScript==
// @name         shorcut for angular debugging
// @namespace    http://tampermonkey.net/
// @version      0.2
// @description  alias window.vm(sel) to window.ng.probe(document.querySelector(sel)).context and get meaningfull errors in case something goes wrong
// @author       Juan D. Jara
// @match        https://localhost:4200/*, http://localhost:4200/*
// @grant        none
// ==/UserScript==

(function() {
    'use strict';

    window.vm = function(sel) {
      if (!window.ng) {
        throw new Error('ng is not available on the window scope. For ng to be available you must use angular in development mode');
      }
      const el = document.querySelector(sel);
      if (!el) {
        throw new Error(`Selector "${sel}" did not match any element`);
      }
      return window.ng.probe(el).context;
    }
})();