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C# version of java's synchronized keyword?
...ever need to be thread-safe. Use YAGNI: only apply thread-safety when you know you actually are going to use it (and test it).
For the method-level stuff, there is [MethodImpl]:
[MethodImpl(MethodImplOptions.Synchronized)]
public void SomeMethod() {/* code */}
This can also be used on accessors ...
How to open every file in a folder?
... print "No files found here!"
print "Total files found:\t", counter
Now you have not only listed all the files in a folder but also have them (optionally) sorted by starting name, file type and others. Just now iterate over each list and do your stuff.
...
How can I make Bootstrap columns all the same height?
...er screens before the columns stack vertically)
Bootstrap 4
Flexbox is now used by default in Bootstrap 4 so there is no need for the extra CSS to make equal height columns: http://www.codeply.com/go/IJYRI4LPwU
Example:
<div class="container">
<div class="row">
<div ...
Optimize Font Awesome for only used classes
...
You can now subset icons from Font-awesome for production use. There is now an official subsetting tool called icnfnt, which allows you to pick and package just the icons you need from the current version of Font-awesome (v3.0.2).
T...
App Inventor 2 扩展 · App Inventor 2 中文网
...Choosing a package name for your extension
3.4 Sharing your extension
Acknowledgements
Appendix A: Temporary instructions for obtaining the source code
1. Overview of App Inventor extension components
App Inventor apps are built using components. Components let the apps use the built-in featu...
XDocument or XmlDocument
I am now learning XmlDocument but I've just ran into XDocument and when I try to search the difference or benefits of them I can't find something useful, could you please tell me why you would use one over another ?
...
Assert a function/method was not called using Mock
...led attribute, but if your assertion fails, the next thing you'll want to know is something about the unexpected call, so you may as well arrange for that information to be displayed from the start. Using unittest, you can check the contents of call_args_list instead:
self.assertItemsEqual(my_var.c...
How to un-commit last un-pushed git commit without losing the changes
...t those changes are still visible in the history)
git push origin master
now if you want to have those changes as you local changes in your working copy ("so that your local copy keeps the changes made in that commit") - just revert the revert commit with --no-commit option:
git revert --no-commi...
How to launch an Activity from another Application in Android
...
If you don't know the main activity, then the package name can be used to launch the application.
Intent launchIntent = getPackageManager().getLaunchIntentForPackage("com.package.address");
if (launchIntent != null) {
startActivity(l...
while (1) vs. while(True) — Why is there a difference (in python 2 bytecode)?
... 0 (True)
6 BINARY_ADD
9 RETURN_VALUE
Now compare:
>>> dis.dis('1 + 1')
1 0 LOAD_CONST 1 (2)
3 RETURN_VALUE
It's emitting a LOAD_GLOBAL (True) for each True, and there's nothing the optimizer can do with a globa...