listy | Plugin to make lists browsable through keyboard | Plugin library

I am just learning javascript and I now know enough to make a measly little dumb project for practice. I was making something called the "AverageFinder". At this point, I had written 39 lines of code(roughly because I optimized my code) and so I added an alert function at the end to see if things were working so far. I was not expecting this, and I knew the general area of the problem. I got NaN also known as Not a Number, and yet I was using variables with no quotes, so it should not have given me NaN. After many puzzled hours and trying to find something on StackOverflow(I found nothing), I tried inputting loads of parseInt and parseFloat commands by my variables, but It still gave me NaN. Please help and explain to me what the problem is, but remember, I am a beginner. My code is below. P.S. I code with repl.it, so you may want to run my code there. I want total_added to display its value instead of giving me NAN.Thanks!

I'm trying to print/return the array listum in code below, but receive error messages about invalid conversions. After a little research it seems that printing arrays all at once is not possible in C++, but must be printed in a for loop of individual letters. I would simply do that but I also read that one return command takes the computer straight out of the function so I don't think I would be able to return the individual letters.

Any guidance on how to best do this is very much appreciated and I ask that you keep in mind that I'm a mediocre python coder at best and do very little C++.

I am learning Python and have been finding that for some reason my for loop will stop, even when there is more 'loops' to go.

This happens ONLY when I delete an item from a list. If the removal is commented out, it works: printing "RUNNING LISTING" twice and it will check 2 items against 2 in the list. If an item is deleted it will print once and will check only 1 item agaisnt the other 2. Both times the console has no error.

It stops with an independant list variable when the original isnt affected: independant_list = looping_list. and also stops with list.remove(x), list.pop(x) and del list[x].

currently the problem code is: del listings_to_add[listing_count]

Here is my code, in short (I think):

I have a list that looks like this:

I am writing a program that will continuously draw a polygon until the user right-clicks. The user can only draw if and only if the user makes a selection in the menu, if the user does not make a selection in the menu, the program will not draw. Up to now, my program has successfully drawn a polygon with the mouse, but the problem is that when I right-click to complete, the program pops up the menu instead of completing the polygon. Now how can I right-click to be able to complete the polygon, here's my program:

So basically I have made an array and a function that shows the array in a list in my HTML. Now I want to create a new array made out of the chosen ones in the list.

My array:

I am learning to code and I am stuck. I trying to define a function which reads data from a file and converts it to a single list and each item in the list being a tuple having integers, floats and characters.

I am creating a shopping list app, each user has a list and each list has many items.

On the show page, I'm iterating over a users list and showing each item in the list and printing out the item name, description & a link to update the item.

The problem is, the update form always uses the first item in the each iteration instead of its assigned item.

I can have a list with 5 rows of items and the update link for each item will always populate with first item in the row.

I'm new to rails so any help with this would be appreciated!

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