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How to check whether an array is empty using PHP?
...t; [UserValue02]
ARRAY THREE:
[0] => []
[1] => []
And testing the above arrays with empty() returns the following results:
ARRAY ONE:
$ArrayOne is not empty
ARRAY TWO:
$ArrayTwo is not empty
ARRAY THREE:
$ArrayThree is not empty
An array will always be ...
XMLHttpRequest cannot load file. Cross origin requests are only supported for HTTP
...riting HTML and Javascript in a code editor on your personal computer, and testing the output in your browser, you will probably get error messages about Cross Origin Requests. Your browser will render HTML and run Javascript, jQuery, angularJs in your browser without needing a server set up. But ...
Performance of Java matrix math libraries? [closed]
...range of operations, there are a few clear leaders as can be seen in the latest performance results (October 2013).
If you are working with "large" matrices and can use native libraries, then the clear winner (about 3.5x faster) is MTJ with system optimised netlib. If you need a pure Java solution ...
How to base64 encode image in linux bash / shell
...ntents of the file named 'DSC_0251.JPG', rather than the filename itself.
test="$(cat DSC_0251.JPG | base64)"
However, base64 can read from the file itself:
test=$( base64 DSC_0251.JPG )
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Terminating a script in PowerShell
...to the conflicting information. Ultimately I always have to perform my own tests to figure it out. So this time I will post my findings.
TL;DR Most people will want to use Exit to terminate a running scripts. However, if your script is merely declaring functions to later be used in a shell, then yo...
Finding JavaScript memory leaks with Chrome
I've created a very simple test case that creates a Backbone view, attaches a handler to an event, and instantiates a user-defined class. I believe that by clicking the "Remove" button in this sample, everything will be cleaned up and there should be no memory leaks.
...
How to get image height and width using java?
... quick as only image size is read from the file and not the whole image. I tested it and there is no comparison to ImageIO.read performance. I hope someone will find this useful.
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Git stash uncached: how to put away all unstaged changes?
...m/a/34681302/292408) is the correct one, I recommend checking it out.
I tested my answer again today (31/1/2020) against git version 2.24.0, and I still believe that it's correct, I added a small note above about the untracked files.
If you think it's not working please also mention your git vers...
How do I analyze a program's core dump file with GDB when it has command-line parameters?
... -s core can be used to dump memory in bulk
Now for the full educational test setup:
main.c
#include <stddef.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
int myfunc(int i) {
*(int*)(NULL) = i; /* line 7 */
return i - 1;
}
int main(int argc, char...
Check a collection size with JSTL
...
<c:if test="${companies.size() > 0}">
</c:if>
This syntax works only in EL 2.2 or newer (Servlet 3.0 / JSP 2.2 or newer). If you're facing a XML parsing error because you're using JSPX or Facelets instead of JSP, then...