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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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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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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/"
# ...
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...
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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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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If list index exists, do X
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This doesn't account for negative indexes. The best way I know is try / except IndexError, but it'd be nice to have a concise way to get a bool
– Abram
Aug 6 '19 at 19:55
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