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How to implement __iter__(self) for a container object (Python)
..._() method starts at the end of the sequence and returns values in reverse order of the sequence. Note that instances from a class implementing the "sequence interface" must define a __len__() and a __getitem__() method.
class Reverse:
"""Iterator for looping over a sequence backwards."""
...
Why can't static methods be abstract in Java?
... It is the job of a Java programmer to know them and their workarounds. In order to have fun we have to use something better than Java in our spare time. But I would not bother about. That is the seed to achieve progress.
– ceving
Dec 4 '12 at 18:48
...
sys.argv[1] meaning in script
...m :
user_args = sys.argv[:-2]
Suppose you want the arguments in reverse order :
user_args = sys.argv[::-1]
Hope this helps.
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How can I run a PHP script in the background after a form is submitted?
...it.
From the Manual:
If a program is started with this
function, in order for it to continue
running in the background, the output
of the program must be redirected to a
file or another output stream. Failing
to do so will cause PHP to hang until
the execution of the program ends.
...
How do I use sudo to redirect output to a location I don't have permission to write to?
...
You'll want to do 'sudo -E ...' in order to use variables in the shelled out command (when using this in a script, for instance).
– Urhixidur
Feb 14 '14 at 21:28
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How to secure database passwords in PHP?
...file and then lock the file using a .htaccess:
<files mypasswdfile>
order allow,deny
deny from all
</files>
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What do parentheses surrounding an object/function/class declaration mean? [duplicate]
...
The first parentheses are for, if you will, order of operations. The 'result' of the set of parentheses surrounding the function definition is the function itself which, indeed, the second set of parentheses executes.
As to why it's useful, I'm not enough of a JavaScr...
What is that “total” in the very first line after ls -l? [closed]
... the command stat * --printf="%b\t(%B)\t%n: %s bytes\n" > to output (in order) the number of blocks, (in parens) the size of those
blocks, the name of the file, and the size in bytes, as shown above.
There are two important things takeaways:
stat reports both the physical_blocks_in_use and ...
Why should I use Google's CDN for jQuery?
...need to customize it. For example if you use Grunt to build the library in order to use only certain modules or setting the AMD name
When you are serving pages over SSL
that require jQuery. You should
serve the JavaScript over SSL as
well as your page to avoid security
problems and warnings.
Also...
No line-break after a hyphen
...e>
body { padding: 20px; }
div { width: 300px; border: 1px solid gray; }
</style>
</head>
<body>
<div>
<p>If&nbsp;there&nbsp;is&nbsp;a&nbsp;-&nbsp;and&nbsp;words&nbsp;are&am...