Recently, I made adjustments to my login component to align more closely with Angular standards. However, upon testing, I encountered errors of this kind:
Cannot read property 'subscribe' of undefined
After using console.log for debugging purposes, I realized that regardless of the input in my onSubmit() function, it incorrectly interprets a valid form.
Just for your information - The login form functions correctly when used practically. The issue only arises during testing.
Let's start with the basics:
An error occurs when trying to access an undefined property 'subscribe'
This indicates that your service is not returning an Observable.
To fix this, you can use the following:
spyOn(mockAuthService, 'login').and.callFake(() => of(null));
Since the callback does not perform any action (signature:
this.authService.login(formUser, formPass).subscribe(() => {null is sufficient.
The subsequent error may be related to this issue; if you do not enter the subscribe callback, your variables will not be set.
Next step:
function setCredentials(user: boolean, pass: boolean) {
component.loginForm = formBuilder.group({
username: user ? 'someUser' : '',
password: pass ? 'somePassword' : ''
});
}
Your form lacks validation! This means it is always considered valid regardless of input.
After upgrading from Angular version 8 to version 15, I've encountered an issue where the debugger is not functioning in any browser's developer tools. Can anyone provide some insight on what could be causing this problem? Is it related to the so ...
Executing a POST request from my browser client looks like this: const post = async (url, body) => { try { const response = await fetch(url, { method: `POST`, headers: { 'Conte ...
I have implemented AngularJS in a nodewebkit application. There are three main views: Home.html Conversation.html Login.html Upon login, the following code is executed: $state.go('home.main'); which triggers the following state c ...
As someone who is new to JavaScript, I have a JavaScript object array that I would like to print the values of in the browser. However, I am unsure of how to do this without using document.write(vehicle); var vehicle = [{name:'Van',wheel:4,cha ...
Currently, I am developing a REACT web application and have integrated the react-datasheet library using NPM. To ensure compatibility with IE11, I made modifications to the JavaScript file installed via NPM. While these changes work perfectly on my local m ...
Despite my efforts of trying numerous examples and methods, I am still stuck in this situation - I have been struggling with it for the past 2 days now... The issue I am facing is that my app functions properly when I log in and click on links, but if I re ...
Seeking feedback on the most effective way to control access to an HTML5 application that is primarily used offline. This application utilizes IndexedDB, local, and session storage to securely store data for offline use, all served via HTTPS. The main go ...
I'm trying to inject a dependency using @Inject() and I want it to be optional. However, the @Optional() tag doesn't seem to work with this particular type of dependency. According to documentation, the syntax for an optional injection with @Inje ...
In the development of my MVC ASP.Net application, there is a requirement for users to fill out a form. Specifically, there is a text box where users must input the duration of their current employment. If the user indicates less than three years, an additi ...
I'm starting out with three.js as a beginner. I've run into some issues with MeshFaceMaterial. If anyone has any advice or solutions, I would greatly appreciate it. Thank you in advance! ...
Is it possible to save a default set of settings for a lightbox jQuery plugin, including options and callback functions, in a variable or array that can be referenced later in different contexts with varying configurations? For example, could I initially ...
Welcome to my SharedModule! import { CommonModule } from "@angular/common"; import { NgModule } from "@angular/core"; import { FormsModule, ReactiveFormsModule } from "@angular/forms"; import { IconModule } from "@my-app/components/icon/icon.module"; impo ...
I've been working on a project to fetch the most recent 50 tweets with a specific hash tag. The project is built for mobile devices using PhoneGap (0.9.6) and jQuery (1.6.1). Below is my code: function retrieveTweets(hash, numOfResults) { var uri ...
const fileSystem = require('fs'); const filePath = require('path'); module.exports.getFiles = function(filepath, callback) { let files = []; fileSystem.exists(filepath, function(exists){ if(exists){ fileSy ...
Essentially, I have an enum that represents different statuses status = {1: "new", 2: "working" ... } and my goal is to transform it into something like status = [{1: "new"}, {2: "working"} ...] in a way that is cl ...
Utilizing Ajax with JavaScript, I am processing data on a PHP page using the GET method. Is it possible to send data from the PHP page when the GET query is empty? My goal is to have a live search feature that filters results based on user input. When a us ...
Can anyone provide assistance with this? I've been struggling for some time now. I am in need of a JavaScript code that can compare two fields in a contact form to ensure they match. For example, Phone Number and Phone Number Again. Both fields must ...
I have an add.ctp file where I can add multiple rows. However, when I place the addNumber function in app/webroot/js, it does not work. Why is that? Here is a snippet from my view file (add.ctp): <table id="mytable"> <tr id="number0" sty ...
Although I am a beginner in Javascript coding, I am eager to learn more about it. I stumbled upon some tutorials on creating collapse/expand <div> blocks. After testing the code on jsfiddle, I found that it works fine there. You can find the code he ...
Dealing with two parallel web service calls can be tricky. Sometimes the first call goes through first, and other times it's the second one. The problem arises when the function in my second service requires data from the first service call. I attemp ...