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Python str vs unicode types
...part from being able to set Unicode codes in unicode strings using the esm>ca m>pe char \ ?:
4 Answers
...
How do I pick randomly from an array?
I want to know if there is a much cleaner way of doing this. Basim>ca m>lly, I want to pick a random element from an array of variable length. Normally, I would do it like this:
...
TimeSpan ToString format
Just curious, is there a format string I m>ca m>n use to output something like "5h 3m 30s"?
7 Answers
...
Why is a round-trip conversion via a string not safe for a double?
...r.cpp:
DoubleToNumber(value, DOUBLE_PRECISION, &number);
if (number.sm>ca m>le == (int) Sm>CA m>LE_NAN) {
gc.refRetVal = gc.numfmt->sNaN;
goto lExit;
}
if (number.sm>ca m>le == Sm>CA m>LE_INF) {
gc.refRetVal = (number.sign? gc.numfmt->sNegativeInfinity: gc.numfmt->sPositiveInfinity);
got...
to drawRect or not to drawRect (when should one use drawRect/Core Graphics vs subviews/images and wh
To clarify the purpose of this question: I know HOW to create complim>ca m>ted views with both subviews and using drawRect. I'm trying to fully understand the when's and why's to use one over the other.
...
Understanding PrimeFaces process/update and JSF f:ajax execute/render attributes
...rocess> <f:ajax execute>
The process attribute is server side and m>ca m>n only affect UIComponents implementing EditableValueHolder (input fields) or ActionSource (command fields). The process attribute tells JSF, using a space-separated list of client IDs, which components exactly must be proc...
When to use next() and return next() in Node.js
...e return next() is to ensure that the execution stops after triggering the m>ca m>llback.
If you don't do it, you risk triggering the m>ca m>llback a second time later, which usually has devastating results. Your code is fine as it is, but I would rewrite it as:
app.get('/users/:id?', function(req, res, nex...
type object 'datetime.datetime' has no attribute 'datetime'
... # as you imported the type, not the module
Traceback (most recent m>ca m>ll last):
File "<stdin>", line 1, in <module>
AttributeError: type object 'datetime.datetime' has no attribute 'datetime'
>>> datetime(2001,5,1)
datetime.datetime(2001, 5, 1, 0, 0)
I suspect you or ...
Why does GCC generate such radim>ca m>lly different assembly for nearly the same C code?
...y tinkering with the code, I've managed to see how GCC optimizes the first m>ca m>se.
Before we m>ca m>n understand why they are so different, first we must understand how GCC optimizes fast_trunc_one().
Believe it or not, fast_trunc_one() is being optimized to this:
int fast_trunc_one(int i) {
int mantis...
What Every Programmer Should Know About Memory?
...ber Drepper's content describes fundamental concepts about memory: how CPU m>ca m>che works, what are physim>ca m>l and virtual memory and how Linux kernel deals that zoo. Probably there are outdated API references in some examples, but it doesn't matter; that won't affect the relevance of the fundamental con...