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Compare if two variables reference the same object in python
...ng to do with the object itself. It's easy to have immuteable objects like strings that are equal but not stored at the same location, for example ''a'*10000 is 'a' * 10000 is False.
– Jochen Ritzel
Apr 10 '17 at 13:43
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TypeError: got multiple values for argument
...sed and delegates the drawing of the box to another function, relaying all extra arguments.
def color_box(color, *args, **kwargs):
painter.select_color(color)
painter.draw_box(*args, **kwargs)
Then the call
color_box("blellow", color="green", height=20, width=30)
will fail because two ...
How can I access and process nested objects, arrays or JSON?
...a key -> value structure. Keys in an array must be numeric, whereas any string can be used as key in objects. The key-value pairs are also called the "properties".
Properties can be accessed either using dot notation
const value = obj.someProperty;
or bracket notation, if the property name wo...
Rails extending ActiveRecord::Base
...onkey patching is easy and quick. But, the time and effort saved is always extracted back
sometime in the future; with compound interest. These days I limit monkey patching to quickly prototype a solution in the rails console.
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What does threadsafe mean?
... the definition of thread safety as found of Wikipedia.
3 important things extracted from the links :
“A piece of code is thread-safe if it functions correctly during
simultaneous execution by multiple threads.”
“In particular, it must satisfy the need for multiple threads to
access the same ...
Spring MVC type conversion : PropertyEditor or Converter?
...ed.
In my mind, PropertyEditors are limited in scope - they help convert String to a type, and this string typically comes from UI, and so registering a PropertyEditor using @InitBinder and using WebDataBinder makes sense.
Converter on the other hand is more generic, it is intended for ANY conve...
Android emulator-5554 offline
...ch for ports in use starting with 565. Execute: netstat -a -n -o | Select-String ":565"
PS C:\Users\CJBS> netstat -a -n -o | Select-String ":565"
TCP 127.0.0.1:5653 127.0.0.1:5653 ESTABLISHED 5944
TCP 127.0.0.1:5657 127.0.0.1:5657 ESTABLISHED ...
Deserializing a JSON into a JavaScript object
I have a string in a Java server application that is accessed using AJAX. It looks something like the following:
8 Answers
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How can I configure my makefile for debug and release builds?
...(CXX) or $(CC) in all your compile commands.
Then, 'make debug' will have extra flags like -DDEBUG and -g where as 'make' will not.
On a side note, you can make your Makefile a lot more concise like other posts had suggested.
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Best way to load module/class from lib folder in Rails 3?
... you want to be autoloadable.
# config.autoload_paths += %W(#{config.root}/extras)
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