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How do I fix blurry text in my HTML5 canvas?
...width on the iPad display. Fortunately for us, this is done automatically by the browser. On the other hand, this is also the reason why you see less definition on images and canvas elements that were made to directly fit their visible area. Because your canvas only knows how to fill 1000px but i...
Prevent a webpage from navigating away using JavaScript
...ot allow you to display a custom message in the prompt, as this was abused by phishers and the like.
– Flimm
Dec 3 '19 at 17:06
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What is the AppDelegate for and how do I know when to use it?
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I normally avoid the design approach implied by Andrew's use of the term "heart of your application". What I mean by this is that I think you should avoid lumping too many things in a central location -- good program design normally involves separating functionality by ...
Difference between private, public, and protected inheritance
...ase contains protectedMember.
No one but Base is aware of privateMember.
By "is aware of", I mean "acknowledge the existence of, and thus be able to access".
next:
The same happens with public, private and protected inheritance. Let's consider a class Base and a class Child that inherits from Ba...
Python dictionary from an object's fields
...()
>>> a.__dict__
{'c': 2, 'b': 1}
A better approach (suggested by robert in comments) is the builtin vars function:
>>> vars(a)
{'c': 2, 'b': 1}
Alternatively, depending on what you want to do, it might be nice to inherit from dict. Then your class is already a dictionary, an...
Can you define aliases for imported modules in Python?
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If you've done:
import long_module_name
you can also give it an alias by:
lmn = long_module_name
There's no reason to do it this way in code, but I sometimes find it useful in the interactive interpreter.
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Capistrano - clean up old releases
... set the callback for "deploy:cleanup" as I said below, since it don't run by default.
– Diego Plentz
May 31 '12 at 0:39
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How to undo 'git reset'?
...of all ref updates (e.g., checkout, reset, commit, merge). You can view it by typing:
git reflog
Somewhere in this list is the commit that you lost. Let's say you just typed git reset HEAD~ and want to undo it. My reflog looks like this:
$ git reflog
3f6db14 HEAD@{0}: HEAD~: updating HEAD
d27924...
How to implement common bash idioms in Python? [closed]
...te Linux command in the shell (with a few exceptions) forks a subprocess. By using Python shutil and os modules, you don't fork a subprocess.
The shell environment features. This includes stuff that sets a command's environment (current directory and environment variables and what-not). You can ...
When is a C++ destructor called?
...n address and allow you to perform operations on the objects they point to by specifically doing so.
2) Following up on question 1, what defines when an object goes out of scope (not regarding to when an object leaves a given {block}). So, in other words, when is a destructor called on an object...