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Finding the index of an item in a list
... itertools.count() (which is pretty much the same approach as enumerate):
from itertools import izip as zip, count # izip for maximum efficiency
[i for i, j in zip(count(), ['foo', 'bar', 'baz']) if j == 'bar']
This is more efficient for larger lists than using enumerate():
$ python -m timeit -s...
Difference between a Structure and a Union
...vior is undefined. GCC provides as an extension that you can actually read from members of an union, even though you haven't written to them most recently. For an Operation System, it doesn't have to matter whether a user program writes to an union or to a structure. This actually is only an issue o...
What values should I use for CFBundleVersion and CFBundleShortVersionString?
...the same build numbers again in different release trains if you want to.
From Technical Note TN2420: Version Numbers and Build Numbers.
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Doing a cleanup action just before Node.js exits
...f the following code is only needed for test demo
// Prevents the program from closing instantly
process.stdin.resume();
// Emits an uncaught exception when called because module does not exist
function error() {
console.log('error');
var x = require('');
};
// Try each of the following one a...
How to convert String to long in Java?
...efficient since it will reuse if needed the cached instances of Long going from -128 to 127 included.
Returns a Long instance representing the specified long value. If a
new Long instance is not required, this method should generally be
used in preference to the constructor Long(long), as th...
Base64 length calculation?
...nded up to a multiple of 4.
The number of unused padding chars resulting from the rounding up to a multiple of 4 will obviously be 0, 1, 2 or 3.
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angularjs directive call function specified in attribute and pass an argument to it
...
From my tests using this code in angular 1.2.28, it works well. My tests do not call theMethodToBeCalled with undefined on first load. Neither does the plunker example. This does not appear to be a problem. In other words, ...
Why is semicolon allowed in this python snippet?
...basically Python has a "trailing blank remover". Which by the way is clear from this: stmt_list ::= simple_stmt (";" simple_stmt)* [";"]
– Cucu
Apr 19 '13 at 14:14
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How to redirect 'print' output to a file using python?
...int 'i = ', i
sys.stdout = orig_stdout
f.close()
Redirecting externally from the shell itself is another good option:
./script.py > out.txt
Other questions:
What is the first filename in your script? I don't see it initialized.
My first guess is that glob doesn't find any bamfiles, and t...
When do you use varargs in Java?
...e, the list is not modified by the method).
Additionally, I would refrain from using f(Object... args) because its slips towards a programming way with unclear APIs.
In terms of examples, I have used it in DesignGridLayout, where I can add several JComponents in one call:
layout.row().grid(new JL...