Precourse | repo contains the instruction material | Learning library

I am working through a precourse challenge and I've tried a few different things to try and get this to work. But I am at a loss as to what I am doing wrong. This is the challenge:

Initialize a variable addThis to 0 and a variable sum to 0. Use a while loop to repeat a code block as long as addThis is less than 10. In the code block, add the value of addThis to sum, then increment addThis by 1. After the while loop runs, the value of sum should be the sum of the numbers 0 through 9.

The Challenge Error: expected 0 to equal 45

And my code:

As part of the precourse for a coding bootcamp, we have to create a simpler version of the underscore JS library. I am struggling with creating the _.first function, which:

• Returns an array with the first n elements of an array.
• If n is not provided it returns an array with just the first element.

This is what I've got so far:

I've written a custom tag and it is working. No problem there. However, while the template tag returns the model object that I need, I'm not able to go one step further and get an attribute of that object. As shown below:

models.py

I recently finished a coding test which requires me to make sure all of my code is passing using node (npm test). Out of nine tests, I fail them all, even though I have tested my code with success in my own environment. For each problem, the test says my code returns "undefined," which I think might be more of a git/github confusion problem than incorrect code. I took a whole course on git/github and still can't find the problem!

I have done all the steps outlined in the test directions (up to step 5 because I cannot pass their tests!): https://github.com/LambdaSchool/Lambda-Challenge

Here is my code:

My program crashes every time when I try to free one of the strings in my struct, here are the functions I call and the struct:

I'm trying to debug my script, I'm new at bash and I can't understant the error i'd tryed to change it several times, i marked line 60 the error: error: ./scriptdemo.txt: line 60: results_array: bad array subscript

I cloned a remote repo called 'X' on my local disk. Then I created 2 new folders inside my local repo X (Precourse and Week1). In the 1st folder (Precourse), I copied all the existing files+folders inside local repo X and in the 2nd folder(Week1), I put some new files of my own.

Some of the commands i used after I had created the new folders and copied stuffs inside them were:

git add *
git commit -m "copying all stuffs in single folder"
git push origin master

The issue was that although the 1st folder(Precourse) is pushed in remote repo along with all the old files+folders inside. However outside thsi folder, the old stuffs still exist (they don't exits in local repo). Also the Week1 folder (newly created) is not pushed well in remote repo and is greyed out. I am unsure what's happening.