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Where does Xcode 4 store Scheme Data?
... @Zaph No problem, just go to Product -> Manage Schemes... -> Select the shared scheme -> Click the Gear icon -> Duplicate -> Uncheck the "Shared" checkbox -> Rename if desired -> Click Edit... -> Make your changes to the scheme. They won't be picked up by people using...
What is the difference between sed and awk? [closed]
...of awk including mawk and nawk.
Both programs use regular expressions for selecting and processing text.
I would tend to use sed where there are patterns in the text. For example, you could replace all the negative numbers in some text that are in the form "minus-sign followed by a sequence of dig...
How to Copy Contents of One Canvas to Another Canvas Locally
... are building a website that uses lots of image/canvas operations.
// select canvas elements
var sourceCanvas = document.getElementById("some-unique-id");
var destCanvas = document.getElementsByClassName("some-class-selector")[0];
//copy canvas by DataUrl
var sourceImageData = ...
How to replace NaN values by Zeroes in a column of a Pandas Dataframe?
...360 -0.229738
4 0.000000 0.000000
To fill the NaNs in only one column, select just that column. in this case I'm using inplace=True to actually change the contents of df.
In [12]: df[1].fillna(0, inplace=True)
Out[12]:
0 0.000000
1 0.570994
2 0.000000
3 -0.229738
4 0.000000
Name...
How to install packages offline?
...r you don't need to use sudo pip….
2) use virtualenv
on online machine select a directory with terminal cd and run this code:
python -m virtualenv myenv
cd myenv
source bin/activate
pip install Flask
after installing all the packages, you have to generate a requirements.txt so while your virt...
android View not attached to window manager
...using Eclipse. Right click in the margin just to the left of your code and select "Toggle breakpoint". You then need to run your application in debug mode, the button that looks like a green insect next to the normal run button. When the program hits a breakpoint, Eclipse will switch to the debug pe...
Does Python have a ternary conditional operator?
... This one emphasizes the primary intent of the ternary operator: value selection. It also shows that more than one ternary can be chained together into a single expression.
– Roy Tinker
Oct 4 '10 at 21:14
...
Adding images or videos to iPhone Simulator
...ing the simulator.
Identify your simulator by going to xCode->Devices, selecting your simulator, and checking the Identifier value.
Go to
~/Library/Developer/CoreSimulator/Devices/[Simulator Identifier]/data/Media/DCIM/100APPLE
and add IMG_nnnn.THM and IMG_nnnn.JPG. You will then need to res...
JavaScript: Check if mouse button down?
...semove='handleMove(this);'>Click and drag me!</div>
The :active selector handles the mouse click much better than mouse up/down, you just need a way of reading that state in the onmousemove event. For that I needed to cheat and relied on the fact that the default cursor is "auto" and I ju...
How to linebreak an svg text within javascript?
... to delete the old tspans first before appended new ones, like this: focus.selectAll("tspan").remove();
– Darren Parker
Dec 14 '15 at 19:38
...