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Rails how to run rake task
How do I run this rake file in terminal/console?
6 Answers
6
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Application Skeleton to support multiple screens
...ge with Actions and one more plus point is that you need not to rename the file(it will assign same name as original one).
once you completed with creation of all images, refresh your project and test it.
Sometimes there may be possibility that the layout which support screen(xhdpi, hdpi, mdpi) ma...
TypeError: $.ajax(…) is not a function?
... which were not needed. If you still get the error, then the jQuery script file is not loaded.
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What exactly is a reentrant function?
...able and correct (no dangling pointers, no contradicting member variables, etc.).
7.3. Make sure all your objects are correctly encapsulated
No one else should have access to their internal data:
// bad
int & MyObject::getCounter()
{
return this->counter;
}
// ...
Removing index column in pandas when reading a csv
I have the following code which imports a CSV file. There are 3 columns and I want to set the first two of them to variables. When I set the second column to the variable "efficiency" the index column is also tacked on. How can I get rid of the index column?
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Amazon S3 CORS (Cross-Origin Resource Sharing) and Firefox cross-domain font loading
...serve everything other than webfonts through CloudFront and serve the font files directly from S3. Sadly, the querystring hack isn't really practical in our application without more significant refactoring, as the assets are all served through the Rails asset pipeline, and there's no convenient way ...
Removing a model in rails (reverse of “rails g model Title…”)
...igration. If you run 'destroy' on that model, it will delete the migration file, but not the database table. So before run
bundle exec rake db:rollback
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fs: how do I locate a parent folder?
How do I write this to go back up the parent 2 levels to find a file?
11 Answers
11
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Close and Dispose - which to call?
... on some object and it simply calls Close() on it's connection or closes a file handle, it's almost always your best bet to call Dispose()! unless you plan on reusing the object in the very near future.
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How can I quantify difference between two images?
... images, convert to grayscale, compare and print results:
def main():
file1, file2 = sys.argv[1:1+2]
# read images as 2D arrays (convert to grayscale for simplicity)
img1 = to_grayscale(imread(file1).astype(float))
img2 = to_grayscale(imread(file2).astype(float))
# compare
n...