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What can you use Python generator functions for?
...generator functions, those that have a yield statement in them. I want to know what types of problems that these functions are really good at solving.
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Finding what branch a Git commit came from
...ul if the commit's already been merged.
Search the reflogs
If you are working in the repository in which the commit was made, you can search the reflogs for the line for that commit. Reflogs older than 90 days are pruned by git-gc, so if the commit's too old, you won't find it. That said, you can ...
Has an event handler already been added?
... has a property changed it needs to be flagged, which the event handler took care of properly before. However now when the objects are deserialized it isn't getting the event handler.
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How to print to console when using Qt
I'm using Qt4 and C++ for making some programs in computer graphics. I need to be able to print some variables in my console at run-time, not debugging, but cout doesn't seem to work even if I add the libraries. Is there a way to do this?
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How to implement the Android ActionBar back button?
I have an activity with a listview. When the user click the item, the item "viewer" opens:
12 Answers
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How do you properly use namespaces in C++?
I come from a Java background, where packages are used, not namespaces. I'm used to putting classes that work together to form a complete object into packages, and then reusing them later from that package. But now I'm working in C++.
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getActivity() returns null in Fragment function
I have a fragment (F1) with a public method like this
15 Answers
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Set value to NULL in MySQL
...f nothing is put into the text box in the form I'm submitting. How can I make this happen?
I've tried inserting 'NULL' but this just adds the word NULL into the field.
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How to let PHP to create subdomain automatically for each user?
How do I create subdomain like http://user.mywebsite.com ? Do i have to access htaccess somehow? Is it actually simply possible to create it via pure php code or I need to use some external script-server side language?
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Password masking console application
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Console.Write("\b \b"); will delete the asterisk character from the screen, but you do not have any code within your else block that removes the previously entered character from your pass string variable.
Here's the relevant working code that should do what you require:
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