Null Pointer

Hi, for the ones who know spring data and hibernate, imagine the example of invoices and invoice rows. If I do the query in SQL, with joins I will get as many rows as there ar...

nvidia or AMD?

I need help with a work for university. My teacher gave us a code that is not complete, we need to continue, but we must follow his code. And I have a question with pointers. ...

Hello, i'm trying codeigniter 4 and I'm having a lot of troubles with .htaccess with xampp, can anyone help me?

Hello i'm making a login system with symfony https://symfony.com/doc/current/session.html I followed this tutorial, i'm logged, but, how can I know with what user?

Hi, I'm starting with Kotlin and my enterprise gave me an app to mantain. I have a question and I don't know how to solve it. When I call an activity from a fragment, when I...

I have a raw pdf string and I want to save it to a pdf, can anyone help me?

do you know how i can create an element from string like <div></div> and append to a div in js or angular js?

Do you have something linkedin CV or something in what I can watch your experience?

Why u use C and not java or Python?

And I dont want to choose a bad pc. I have think in ryzen 5 5600H. What is your opinion?

How you transform an entity to json in Symfony?

Hello, can anyone help me with this simple regular expression? "/^".$rutaBase."/" I want to compare if 2 absolute routes starts with the same "string". And PHP shows me this e...

This is the authService, because of this I subscribe to keep the auth things inside auth service, is a bad practice? Where I should store it?

I understand what u said, but I don't understand where I must call the API, which method is executed before Ng init?

I mean, which colors are good combinations?

I can control in the call the execution of the promise, bit I have to do it too in where I dont want to controll it?

Promise.All waits for all promises, but is async? I mean it waits the end of the first to start with the second?

Can anybody help me with this issue? In the question is the code to understand my question

why this convert the promise into a function?