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Generate list of all possible permutations of a string
...o about generating a list of all possible permutations of a string between x and y characters in length, containing a variable list of characters.
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What is the list of possible values for navigator.platform as of today? [closed]
I know that this changes quite often, but is there a list as exhaustive as possible out there of the possible values returned by navigator.platform ?
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Multiplication on command line terminal
I'm using a serial terminal to provide input into our lab experiment. I found that using
8 Answers
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How can I find out the current route in Rails?
...RI:
current_uri = request.env['PATH_INFO']
# If you are browsing http://example.com/my/test/path,
# then above line will yield current_uri as "/my/test/path"
To find out the route i.e. controller, action and params:
path = ActionController::Routing::Routes.recognize_path "/your/path/here/"
# ...
Embed YouTube video - Refused to display in a frame because it set 'X-Frame-Options' to 'SAMEORIGIN'
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<iframe width="420" height="315" src="https://www.youtube.com/embed/A6XUVjK9W4o" frameborder="0" allowfullscreen></iframe>
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IOS: verify if a point is inside a rect
...oint(CGRect rect, CGPoint point);
Parameters
rect The rectangle to examine.
point The point to examine.
Return Value
true if the rectangle is not null or empty and the point is located within the rectangle; otherwise, false.
A point is considered inside the rectangle if its coordinates l...
Setting ANDROID_HOME enviromental variable on Mac OS X
...owing (changing out the path to the SDK to be however you installed it):
export ANDROID_HOME={YOUR_PATH}
Once you have this set, you need to add this to the PATH environment variable:
export PATH=$PATH:$ANDROID_HOME/tools:$ANDROID_HOME/platform-tools
Lastly apply these changes by re-sourcing ....
How much is too much with C++11 auto keyword?
... write the type at first sight, but the type of the right hand side of an expression is obvious. For example, using:
my_multi_type::nth_index<2>::type::key_type::composite_key_type::
key_extractor_tuple::tail_type::head_type::result_type
to get the composite key type in boost::multi_ind...
Standard concise way to copy a file in Java?
...om:
public static void copyFile(File sourceFile, File destFile) throws IOException {
if(!destFile.exists()) {
destFile.createNewFile();
}
FileChannel source = null;
FileChannel destination = null;
try {
source = new FileInputStream(sourceFile).getChannel();
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How does collections.defaultdict work?
I've read the examples in python docs, but still can't figure out what this method means. Can somebody help? Here are two examples from the python docs
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