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Using async/await for multiple tasks
...teTime testStart)
{
var workerStart = DateTime.Now;
Console.WriteLine("Worker {0} started on thread {1}, beginning {2} seconds after test start.",
Id, Thread.CurrentThread.ManagedThreadId, (workerStart-testStart).TotalSeconds.ToString("...
Diagnosing Memory Leaks - Allowed memory size of # bytes exhausted
... common source of memory leaks are cyclic references and global variables. If you use a framework, you'll have a lot of code to trawl through to find it, I'm afraid. The simplest instrument is to selectively place calls to memory_get_usage and narrow it down to where the code leaks. You can also use...
Print a file's last modified date in Bash
...e the
stat
command
stat -c %y "$entry"
More info
%y time of last modification, human-readable
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How to detect if a variable is an array
What is the best de-facto standard cross-browser method to determine if a variable in JavaScript is an array or not?
12 Ans...
Resize HTML5 canvas to fit window
...is 125% is often related to Device Pixel Resolution adjustment. Basically, if you are on a high pixel density device, the font will appear smaller than it should... so it will scale up to make the font be normal sized. As far as I understand it. You can check the display using: window.devicePixelRat...
How to capitalize the first letter in a String in Ruby
...sn't do what you want it to, it outputs мария instead of Мария.
If you're using Rails there's an easy workaround:
"мария".mb_chars.capitalize.to_s # requires ActiveSupport::Multibyte
Otherwise, you'll have to install the unicode gem and use it like this:
require 'unicode'
Unicod...
jQuery: checking if the value of a field is null (empty)
Is this a good way to check if the value of a field is null ?
7 Answers
7
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How to check whether an array is empty using PHP?
...comma separated list (or a single value). What is the easiest way to check if it's empty? I'm assuming I can do so as soon as I fetch the $gameresult array into $gamerow ? In this case it would probably be more efficient to skip exploding the $playerlist if it's empty, but for the sake of argum...
Reverse engineering from an APK file to a project
...ful tools which will generate Java code (rough but good enough) from an unknown APK file.
Download dex2jar tool from dex2jar.
Use the tool to convert the APK file to JAR:
$ d2j-dex2jar.bat demo.apk
dex2jar demo.apk -> ./demo-dex2jar.jar
Once the JAR file is generated, use JD-GUI to open the J...
How do I change the root directory of an apache server? [closed]
Does anyone know how to change the document root of the Apache server? I basically want localhost to come from /users/spencer/projects directory instead of /var/www .
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