Leopard | HTTP request thread safety to satisfy daily needs package | HTTP library

I am learning NodeJS and learning prototypal inheritance.

Below is the code I am using for prototypal inheritance .

The issue I am facing is :

The meow, purr and hiss methods do get called on leopardObj.

But , whenever I call below methods , inside those methods , this.name is always coming as undefined.

I am new to the whole coding world. And I am currently creating a learning app for kids, and one of the categories included is taking a quiz. I wanted to shuffle all the questions and I was able to do so but the problem I am facing now is that the questions gets repeated

here is the code i used for Quiz questions activity

I'm using tqdm twice in my script, and the first time it works fine but the second time it only updates after 14 iterations. It's the same if I remove all other print statements. Any idea what might be going wrong?

Program:

Here is a python script. Running in Python 3.8. Browser- Firefox and geckodriver (latest versions)

I am new to the web designing and trying to learn bootstrap. I want to create a product page for that I tried to use the predefined template from - https://www.bootdey.com/snippets/view/shop-product-detail#css

When I used the given code it is not showing as photos and description is devided in two parts. Both are in vertical pattern.

I want it to look like this :

I want to devide the images and information in two columns and wrap the whole product details in white box.

here is the code:

I am trying to calculate the unique values in a column of a pandas dataframe grouped by a second column and to return the results as a new column in the dataframe.

When I test this operation on the following dataframe it returns null values.

I’m learning C# and I have a doubt about the use of inheritance in classes and I would like that somebody could help me.

If I have some classes that inherit from a abstract class, I can declare an object of the secondary class as of the type of the primary abstract class, like this:

is there a way I can grep/awk multiple lines from a cluster based on a pattern?

I have a file as follows:

File.txt

I'm trying to make a personality quiz and I want to convert the answer code I got (yes is an A and no is a B) its a simple 4 question personality quiz for kids. I have a function that puts all 4 questions "identifiers" (the A and B) into a string then I want to make an if statement that tells the program to output an answer based on that 4 letter code. So basically when it is AAAA the program needs to convert that to a Leopard(AAAA = Leopard) I have the code that outputs it to the HTML file I just need to convert that AAAA to a word.