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How do I abort/cancel TPL Tasks?
...do some heavy work here
Thread.Sleep(100);
if (ct.IsCancellationRequested)
{
// another thread decided to cancel
Console.WriteLine("task canceled");
break;
}
}
...
Remote origin already exists on 'git push' to a new repository
...git remote rm origin
Again "origin" is the name of the remote repository if you want to
remove the "upstream" remote:
git remote rm upstream
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jQuery SVG, why can't I addClass?
...ery (less than 3) can't add a class to an SVG.
.attr() works with SVG, so if you want to depend on jQuery:
// Instead of .addClass("newclass")
$("#item").attr("class", "oldclass newclass");
// Instead of .removeClass("newclass")
$("#item").attr("class", "oldclass");
And if you don't want to depe...
Shell equality operators (=, ==, -eq)
Can someone please explain the difference between = , == and -eq in shell scripting?
4 Answers
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How do I enable/disable log levels in Android?
...LOGLEVEL > 1;
...
public static boolean VERBOSE = LOGLEVEL > 4;
if (VERBOSE) Log.v(TAG, "Message here"); // Won't be shown
if (WARN) Log.w(TAG, "WARNING HERE"); // Still goes through
Later, you can just change the LOGLEVEL for all debug output level.
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Is duplicated code more tolerable in unit tests?
...eems there is a trade-off between tests' readability and maintainability. If I leave duplicated code in unit tests, they're more readable, but then if I change the SUT , I'll have to track down and change each copy of the duplicated code.
...
Why do you need to put #!/bin/bash at the beginning of a script file?
...helps some editors like Vim determine the language for syntax highlighting if the file doesn't have an extension. Without the shebang, Vim will display a bash script the same as plain text file.
– Aaron Blenkush
Dec 10 '13 at 21:16
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Max return value if empty query
... .Select(x => x.ShoeSize)
.DefaultIfEmpty(0)
.Max();
The zero in DefaultIfEmpty is not necessary.
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Transferring files over SSH [closed]
...'re saying secure copy ./styles/, but not where to copy it to.
Generally, if you want to download, it will go:
# download: remote -> local
scp user@remote_host:remote_file local_file
where local_file might actually be a directory to put the file you're copying in. To upload, it's the opposit...
Simplest SOAP example
...';
xmlhttp.onreadystatechange = function () {
if (xmlhttp.readyState == 4) {
if (xmlhttp.status == 200) {
alert(xmlhttp.responseText);
// alert('done. use firebug/console to see network response');
...