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Dynamically set local variable [duplicate]
...en't functions (so modules, class definitions, instances) are usually done by dictionary lookups (as Sven points out in the comments there are exceptions, for example classes that define __slots__). Function locals can be optimised for speed because the compiler (usually) knows all the names in adva...
final keyword in method parameters [duplicate]
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for future readers, pls read javadude.com/articles/passbyvalue.htm instead of these answers. Java is pass-by-value and key word 'final' just cares that this object wont be changed by accident within the method. (Or for the reason to be used in anonymous classes)
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The difference between sys.stdout.write and print?
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print is just a thin wrapper that formats the inputs (modifiable, but by default with a space between args and newline at the end) and calls the write function of a given object. By default this object is sys.stdout, but you can pass a file using the "chevron" form. For example:
print >>...
Rails new vs create
...ended to render a form suitable for creating a new resource, which it does by calling the new action within the controller, which creates a new unsaved record and renders the form.
An HTTP POST to /resources takes the record created as part of the new action and passes it to the create action withi...
OSGi, Java Modularity and Jigsaw
...itself. As a secondary goal it will offer a module system that may be used by other Java libraries and applications.
My position is that something like Jigsaw is probably necessary for the JRE only, but that it will create far more problems than it claims to solve if used by other Java libraries or...
findViewById in Fragment
...nt which I have created in the XML for the Fragment. However, the findViewById method only works if I extend an Activity class. Is there anyway of which I can use it in Fragment as well?
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Embedding Base64 Images
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Update: 2017-01-10
Data URIs are now supported by all major browsers. IE supports embedding images since version 8 as well.
http://caniuse.com/#feat=datauri
Data URIs are now supported by the following web browsers:
Gecko-based, such as Firefox, SeaMonkey, Xero...
sphinx-build fail - autodoc can't import/find module
...ort of sys), there is a sys.path.insert() statement, which you can adapt.
By the way: you can use the Makefile created by Sphinx to create your documentation.
Just call
make
to see the options.
If something went wrong before try:
make clean
before running make html.
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Javascript object Vs JSON
...y be omitted as per my explanation in Q1.
Q3. You can parse a JSON string by using JSON.parse, and this is generally the best way to do it (if the browser or a framework provides it). You can also just use eval since JSON is valid javascript code, but the former method is recommended for a number o...
What is the most efficient way of finding all the factors of a number in Python?
...if n % i == 0 returns a pair of factors if the remainder when you divide n by the smaller one is zero (it doesn't need to check the larger one too; it just gets that by dividing n by the smaller one.)
The set(...) on the outside is getting rid of duplicates, which only happens for perfect squares. ...