udemy

The screenshot below is taken from the Maximilian Schwarzmüller's Udemy Course "React - The Complete Guide (incl Hooks, React Router, Redux)"

When using useSelector to access some part of the state, it is not obvious where the state is being passed in. In the screenshot below, Max executes useSelector to access the cartIsVisible method of the ui reducer - but how does he get access to the state itself? Since the useSelector is just a hook taken from react-redux and there is nothing else passed in, how does he have access to state? When I tried to console.log(state) it shows an error that state is not defined.

I am currently doing a javascript course on udemy and ran into a problem with a small coding challenge. The code is supposed to pick a random person from an array. My code works on their test platform, but i cant get it to work in the chrome developer tools.

I was trying to navigate back to the first Screen using Navigator.pop(context), but instead it shows a blank screen instead of going back to the first screen. How do i fix this

MAIN SCREEN

I am doing a Udemy tutorial on data analysis and machine learning and I have come across an issue that I am not able to understand fully.

The dataset being used is available on Kaggle and is called 911.csv.

I am supposed to Create a new feature ** In the titles column there are "Reasons/Departments" specified before the title code. These are EMS, Fire, and Traffic. Use .apply() with a custom lambda expression to create a new column called "Reason" that contains this string value.**

*For example, if the title column value is EMS: BACK PAINS/INJURY, the Reason column value would be EMS. *

when I do this for the first row in a column in works

My dev environment is as follows:

• Mac Mini M1
• Mac OS Monterey
• Visual Studio Code
• Flutter 2.8.0
• iPhone 12 Pro Max (iOS simulator)

Flutter dependencies: dependencies: flutter: sdk: flutter cupertino_icons: ^1.0.2 firebase_core: ^1.10.5 firebase_auth: ^3.3.3 google_sign_in: ^5.2.1 flutter_login_facebook: ^1.2.0
provider: ^6.0.1

When I try to build and run the application, I get the following error:

Launching lib/main.dart on iPhone 12 Pro Max in debug mode... Xcode build done. 18.5s Failed to build iOS app Error output from Xcode build: ↳ ** BUILD FAILED ** Xcode's output: ↳ /Users/daoudmalikyar/Documents/dev/Udemy/flutter_firebase/time_tracker/ios/Runner/GeneratedPluginRegistrant.m:12:9: fatal error: module 'firebase_auth' not found @import firebase_auth; ~~~~~~~^~~~~~~~~~~~~ 1 error generated. note: Using new build system note: Planning note: Build preparation complete note: Building targets in parallel /Users/daoudmalikyar/Documents/dev/Udemy/flutter_firebase/time_tracker/ios/Pods/Pods.xcodeproj: warning: The iOS Simulator deployment target 'IPHONEOS_DEPLOYMENT_TARGET' is set to 8.0, but the range of supported deployment target versions is 9.0 to 15.0.99. (in target 'AppAuth' from project 'Pods') /Users/daoudmalikyar/Documents/dev/Udemy/flutter_firebase/time_tracker/ios/Pods/Pods.xcodeproj: warning: The iOS Simulator deployment target 'IPHONEOS_DEPLOYMENT_TARGET' is set to 8.0, but the range of supported deployment target versions is 9.0 to 15.0.99. (in target 'GoogleSignIn' from project 'Pods') Could not build the application for the simulator. Error launching application on iPhone 12 Pro Max. Exited (sigterm)

I've tried several potential fixes found on the web but none seem to fix the issue. Again, this code was running fine under 2.5.3. When I try building the project in XCode, I get the same error that 'firebase_auth' was not found. Any suggestions are appreciated.

Thanks.

I am taking a course in Udemy and I am new to the world of Kubernetes and I am trying to configure ingress nginx controller in Kubernetes but it returns 404 not found when i send a request at specified URL, it has been 10 days that I am trying to fix it, i've looked at similar questions but none of their answers are working for me. I am also using Skaffold to do build/deploy image on docker hub automatically when i change something in files.

My express app server:

I am new to mongodb, I am learning from some Udemy courses and I want to know how I can update a document existing field without overwriting it.

I have the following collection with these documents:

enter image description here

I want to add new warehouses in the "item":"drafts" within the stock field.

What I am trying is:

enter image description here

And giving the output it seems that is working, but when I do again db.matrices.find(), what I get is the exactly same output that in the first image.

How can I update it? I have tried also the update method, but does not do what I want to do.

Thanks!

PD: I am using linux mint, with mongo v5.0.3, and mongosh v1.1.1

I am a beginner to learn about React. I tried to follow up on one Udemy lecture but my searchbox didn't work as well even though I rewrite the code three times... Could you check this code why my searchbox didn't work? If I type some words in searchbox, it should show matched cards(write down name on search box and it shows a matched card)

I will share my code bellow

This is index.js

I'm working on Cole Steele's Web Developer Bootcamp on Udemy #264. Event Bubbling. I'm trying to build a function which will allow one or more objects to be passed in and to execute the same action (toggle the classList 'hide' so that the 'Click Here to Hide' button goes away and the 'Click Here to Show' button appears) on each of them.

I am able to get this working by calling the function separately, such as