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Elva Prohaska

Questions by Elva Prohaska

ASP.NET 2.0 - How to use app_offline.htm?

I've read about the app_offline.htm file which can be placed within the root of a .NET 2.0 application which will in...

Google Coding Challenge Question 2020 : Unspecified Words?

I got the following problem for the Google Coding Challenge which happened on 16th August 2020. I tried to solve it ...

How to make the script wait/sleep in a simple way in unity?

How can I put a sleep function between the TextUI.text = ...., to wait 3 seconds between each phrase? public Text ...

What is the difference between up-casting and down-casting with respect to class variable?

What is the difference between up-casting and down-casting with respect to class variable? For example in the follo...

Can python detect which OS is it running under??

Can python detect OS and then contruct a if/else statement for File System. I would need to replace C:\CobaltRCX\ ...

ssh “permissions are too open” error?

I had a problem with my mac where I couldn't save any kind of file on the disk anymore. I had to reboot OSX lion and...

Difference between innerText, innerHTML, and childNodes[].value??

What is the difference between innerHTML, innerText and childNodes[].value in JavaScript? ...

Create simple bitmap in C (without external libraries)?

For learning purposes, I want to create a single 2x2 bitmap image using C programming language with no external libr...

React - props is not defined?

I have two components. MypropDestructuring.jsx (main component) MypropDestructuringMessage.jsx (using for prop des...

Convert character HH:MM:SS to proper time class?

In the following data frame the 'time' column is character id <- c(1, 2, 3, 4) time <- c("00:00:01", "01:02:00...

Detect if MongoDB is installed on windows?

I need to detect if MongoDB is installed on a Windows machine in my app installer. Does anyone know what I can loo...

How can I select records ONLY from yesterday??

I've spent hours searching the web for an answer to this question... Here's what I currently have: select * from ...

lexers vs parsers?

Are lexers and parsers really that different in theory? It seems fashionable to hate regular expressions: coding h...

What does the 'b' character do in front of a string literal??

Apparently, the following is the valid syntax: my_string = b'The string' I would like to know: What does this b...