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Check if an array is empty or exists
When the page is loading for the first time, I need to check if there is an image in image_array and load the last image.
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Node.js check if file exists
How do i check the existence of a file ?
17 Answers
17
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Random / noise functions for GLSL
As the GPU driver vendors don't usually bother to implement noiseX in GLSL, I'm looking for a "graphics randomization swiss army knife" utility function set, preferably optimised to use within GPU shaders. I prefer GLSL, but code any language will do for me, I'm ok with translating it on my own ...
What is [Serializable] and when should I use it?
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What is it?
When you create an object in a .Net framework application, you don't need to think about how the data is stored in memory. Because the .Net Framework takes care of that for you. However, if you want to store the conten...
Confused by python file mode “w+”
...e with a with statement like you should be. Then you'd do something like this to read from your file:
with open('somefile.txt', 'w+') as f:
# Note that f has now been truncated to 0 bytes, so you'll only
# be able to read data that you write after this point
f.write('somedata\n')
f....
Difference between web server, web container and application server
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Your question is similar to below:
What is the difference between application server and web server?
In Java:
Web Container or Servlet Container or Servlet Engine : is used to manage the components like Servlets, JSP. It is a part of the...
Is #pragma once part of the C++11 standard?
...e standard and portable way to avoid multiple header inclusions in C++ was/is to use the #ifndef - #define - #endif pre-compiler directives scheme also called macro-guard scheme (see code snippet below).
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Batch file to delete files older than N days
...and others that required installing extra command line utilities to accomplish the task.
23 Answers
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What is your favorite C programming trick? [closed]
For example, I recently came across this in the linux kernel:
37 Answers
37
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Why are global variables evil? [closed]
I'm trying to find out why the use of global is considered to be bad practice in python (and in programming in general). Can somebody explain? Links with more info would also be appreciated.
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