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How do you create a hidden div that doesn't create a line break or horizontal space?
...takes up space in the layout.
display: none removes the element completely from the document, it doesn't take up any space.
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How is a CRC32 checksum calculated?
...-student or engineer I challenge to break this down. Everyone will benefit from this analysis.
So to work out a full example:
Original message : 1101011011
Polynomial of (W)idth 4 : 10011
Message after appending W zeros : 11010110110000
Now we divide the augm...
notifyDataSetChanged example
... a lot of resources and garbage collection.)
Create your own class derived from BaseAdapter and ListAdapter that allows changing of the underlying List data structure.
Use the notifyDataSetChanged() every time the list is updated. To call it on the UI-Thread, use the runOnUiThread() of Activity.
The...
How do you change the size of figures drawn with matplotlib?
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figure tells you the call signature:
from matplotlib.pyplot import figure
figure(num=None, figsize=(8, 6), dpi=80, facecolor='w', edgecolor='k')
figure(figsize=(1,1)) would create an inch-by-inch image, which would be 80-by-80 pixels unless you also give a dif...
failed to serialize the response in Web API
...our of the JSON formatter, but I was getting XML when I called the service from the browser.
To fix this, I switched off XML and forced only JSON to be returned.
In the Global.asax file, put the following lines at the top of your Application_Start method:
GlobalConfiguration.Configuration.Forma...
How to run Django's test database only in memory?
... it depends what you are testing. But I totally agree that, at the end and from time to time, you need to run the tests with your real database (Postgres, MySQL, Oracle...). But running your tests in-memory with sqlite can save you a lot of time.
– Etienne
Mar ...
Catch an exception thrown by an async void method
Using the async CTP from Microsoft for .NET,
is it possible to catch an exception thrown by an async method in the calling method?
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Where does forever store console.log output?
...GFILE Logs the forever output to LOGFILE
-o OUTFILE Logs stdout from child script to OUTFILE
-e ERRFILE Logs stderr from child script to ERRFILE
For example:
forever start -o out.log -e err.log my-script.js
See here for more info
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Call by name vs call by value in Scala, clarification needed
..."call-by-name" has nothing to do with names. => Int is a different type from Int; it's "function of no arguments that will generate an Int" vs just Int. Once you've got first-class functions you don't need to invent call-by-name terminology to describe this.
– Ben
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Workflow for statistical analysis and report writing
... in all the data required. Typically this is a short file, reading in data from files, URLs and/or ODBC. Depending on the project at this point I'll either write out the workspace using save() or just keep things in memory for the next step.
clean.R: This is where all the ugly stuff lives - taking ...