thorp | Simple Social Networking | Networking library

First excuse my language and poor understanding of coding (I'm doing this by trial and error).

I have 2 dropdown menus that have a default option of "choose county" and Choose holiday park". When on these options I want the save button to be disabled. This works until I swap back and forth between the dropdown boxes.

Also, as an aside how do I have an explanation for the end user to complete the field before the button becomes active? I have a jsfiddle that demonstrates the issue. https://jsfiddle.net/cosypaws/gry0w98t/8/

I am using Splunk to extract a number of fields from xml data this is contained in a log file. So to limit the search to be MOSTLY the xml file I start the search with this: sourcetype="name of type here" "RULE"

This returns:

I am building a horse racing database and have calculated WinReturn for each race.

I would like to add a column for cumulative returns for each horse but I dont think I can sum WinReturn as this column is calculated on the fly.

I have tried the following but am receiving either syntax errors or it is simply calculating the number of times as horse has raced:

(SELECT COUNT(*) FROM raceresult WHERE HorseId = A.HorseId AND RaceDate <= A.RaceDate IF (A.Place = 1, 10.0 * (A.BFSP-1), -10) AS CumulativeWinReturn,

Can anyone see where I am going wrong?

The following code generates 3 random numbers by using window.crypto.getRandomValues. According to the developer's documentation (Microsoft MSDN and Mozilla MDN), this should work both in IE and in Chrome.

But in reality it works only in Chrome, not Internet Explorer 11. According to Microsoft, this code should work - they have given a similar code sample as the one listed below (see MSDN link above).

What is wrong? And how can it be fixed so it will work in both browsers?

Working through the Wiki Prims example from https://en.wikipedia.org/wiki/Prim%27s_algorithm

Get to point 3c -

Loop over the edges vw connecting v to other vertices w. For each such edge, if w still belongs to Q and vw has smaller weight than C[w], perform the following steps:

Set C[w] to the cost of edge vw Set E[w] to point to edge vw.

So, if vw < C[w] - but if C[w] is already set as "C[v] (the cheapest cost of a connection to v)" then how can any edge be less than the best available?

If I let it run I get this..

Here's what I have so far...

I need some help with cleaning a Dataframe that has multi index.

it looks something like this

Is there a chance that existing code in a large project might bomb if I add a new optional parameter to a function that's used everywhere? I know I can overload the function instead and minimize the risk, but really.. what's the risk if I insist on going with an optional parameter?

Here's an example:

I downloaded this 200k Q/A of Jeopardy questions. I thought it would be fun to plug into some trivia bot. Anyhow, it's 50M in size with no line breaks that I can see.

I just want to pull all of the questions and answers from this monster into a file format like:

I am currently building a portfolio in wich i intend to mimic the windows workflow to display my projects and to have a familiar user interaction. The problem i am facing now is with creating multiple explorer windows. I can create multiple ones at the time, but when i try to the content specified to each window, these don't assume the correct content assigned. I am using regular JS and jQuery in this project.

I am generating the Explorer windows with the following code: