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How to test if string exists in file with Bash?
...
grep -Fxq "$FILENAME" my_list.txt
The exit status is 0 (true) if the name was found, 1 (false) if not, so:
if grep -Fxq "$FILENAME" my_list.txt
then
# code if found
else
# code if not found
fi
Explanation
Here are the relevant sections of the man page for grep:
grep [...
How to display a confirmation dialog when clicking an link?
...
620
Inline event handler
In the most simple way, you can use the confirm() function in an inline on...
How to get IntPtr from byte[] in C#
...unmanagedPointer = Marshal.AllocHGlobal(bytes.Length);
Marshal.Copy(bytes, 0, unmanagedPointer, bytes.Length);
// Call unmanaged code
Marshal.FreeHGlobal(unmanagedPointer);
Alternatively you could declare a struct with one property and then use Marshal.PtrToStructure, but that would still require ...
jQuery callback on image load (even when the image is cached)
...ction() {
if(this.complete) {
$(this).load(); // For jQuery < 3.0
// $(this).trigger('load'); // For jQuery >= 3.0
}
});
Note the change from .bind() to .one() so the event handler doesn't run twice.
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How to customize an end time for a YouTube video?
...e video. I know that I can customize the start time by adding &start=30 , but I haven't seen anything relating to the end time.
...
Java: function for arrays like PHP's join()?
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307
Starting from Java8 it is possible to use String.join().
String.join(", ", new String[]{"Hello...
Measuring code execution time
...he instance of Stopwatch
//your sample code
System.Threading.Thread.Sleep(500);
stopwatch.Stop();
Console.WriteLine(stopwatch.ElapsedMilliseconds);
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How to convert a byte array to a hex string in Java?
... is the function I currently use:
private static final char[] HEX_ARRAY = "0123456789ABCDEF".toCharArray();
public static String bytesToHex(byte[] bytes) {
char[] hexChars = new char[bytes.length * 2];
for (int j = 0; j < bytes.length; j++) {
int v = bytes[j] & 0xFF;
h...
VS2013 permanent CPU usage even though in idle mode
I've recently updated VS2013 to Update 1 and since then VS takes CPU usage to 25% (on a 4 cores intel i5 cpu) permanently even though it's supposed to be idle. I thought it has some unfinished background processes so I left it running for a while but it keeps using the cpu when it's supposed to be i...
How to make IPython notebook matplotlib plot inline
...rying to use IPython notebook on MacOS X with Python 2.7.2 and IPython 1.1.0.
10 Answers
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