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Using 'return' in a Ruby block
...turn 6 * 7
irb(main):008:1> }
LocalJumpError: unexpected return
from (irb):7:in `block in irb_binding'
from (irb):2:in `call'
from (irb):2:in `thing'
from (irb):6
from /home/mirko/.rvm/rubies/ruby-1.9.1-p378/bin/irb:15:in `<main>'
irb(main):009:0> ...
Accessing class variables from a list comprehension in the class definition
How do you access other class variables from a list comprehension within the class definition? The following works in Python 2 but fails in Python 3:
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insert vs emplace vs operator[] in c++ map
...You can directly construct it with the appropriate type or pass any object from which the value_type can be constructed, which is where std::make_pair comes into play, as it allows for simple creation of std::pair objects, although it is probably not what you want...
The net effect of the following...
How to remove newlines from beginning and end of a string?
...the best way to keep the part with text, but remove the whitespace newline from the end?
10 Answers
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Retrieve a single file from a repository
...data transferred and disk space used) to get the contents of a single file from a remote git repository?
21 Answers
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How to fix getImageData() error The canvas has been tainted by cross-origin data?
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As others have said you are "tainting" the canvas by loading from a cross origins domain.
https://developer.mozilla.org/en-US/docs/HTML/CORS_Enabled_Image
However, you may be able to prevent this by simply setting:
img.crossOrigin = "Anonymous";
This only works if the remote serve...
How to get root access on Android emulator?
I have All Android SDK versions(from 1.5 to 2.3.3), and I tried many methods for getting root in Android emulator. I don't use any Android device and test everything on emulator(AVD).
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Is it possible to prevent an NSURLRequest from caching data or remove cached data following a reques
...or days and finally tried to prevent caching since a lot of CFURL* objects from the internal framework were hanging around. Returning nil from willCacheResponse was the only thing that worked!
– Bron Davies
Sep 30 '10 at 19:37
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Why does Git say my master branch is “already up to date” even though it is not?
I just deleted ALL the code from a file in my project and committed the change to my local git (on purpose). I did
7 Answe...
How to turn on/off ReactJS 'development mode'?
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The other answer assumes you are using external pre-built files from react, and while correct that is not how most folks are going to or should consume React as a package. Moreover, at this point most every React library and package also relies on the same convention to toggle dev time he...