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How do I automatically scroll to the bottom of a multiline text box?
...t property. Though that might depend on how often you're calling it; I was testing with a tight loop.
This will not scroll if it is called before the textbox is shown, or if the textbox is otherwise not visible (e.g. in a different tab of a TabPanel). See TextBox.AppendText() not autoscrolling. T...
NodeJS / Express: what is “app.use”?
...path],callback,[callback]) :
we can add a callback on the same.
app.use('/test', function(req, res, next) {
// write your callback code here.
});
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Getting a slice of keys from a map
...ly won't make much of a difference, but it's not much more work, and in my tests (using a map with 1,000,000 random int64 keys and then generating the array of keys ten times with each method), it was about 20% faster to assign members of the array directly than to use append.
Although setting the ...
如何选择机器学习算法 - 大数据 & AI - 清泛网移动版 - 专注C/C++及内核技术
...problem? Of course, if you really care about accuracy, your best bet is to test out a couple different ones (making sure to try different parameters within each algorithm as well), and select the best one by cross-validation. But if you’re simply looking for a “good enough” algorithm for y...
Why does modern Perl avoid UTF-8 by default?
...locale. Now what? It’s tough, I tell you. You can play with ucsort to test some of these things out.
Consider how to match the pattern CVCV (consonsant, vowel, consonant, vowel) in the string “niño”. Its NFD form — which you had darned well better have remembered to put it in — becom...
rspec 3 - stub a class method
...should do
allow(MyMod::Utils).to receive(:find_x).and_return({something: 'testing'})
Check out the doco Method stubs.
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Creating and throwing new exception
...pecific exception such as FileNotFoundException use this format
if (-not (Test-Path $file))
{
throw [System.IO.FileNotFoundException] "$file not found."
}
To throw a general exception use the throw command followed by a string.
throw "Error trying to do a task"
When used inside a catch, y...
Clean code to printf size_t in C++ (or: Nearest equivalent of C99's %z in C++)
...
@ChrisMarkle A quick test shows me it doesn't work in MinGW. Also the MS site doesn't list it (msdn.microsoft.com/en-us/library/tcxf1dw6%28v=vs.100%29.aspx). I suppose the answer is no.
– wump
Sep 9 '12 at 1...
Lock, mutex, semaphore… what's the difference?
...uld be implemented as a simple 'boolean flag').
Busy waiting= Continuosly testing of a variable until some value appears.
Finally:
Spin-lock (aka Spinlock)= A lock which uses busy waiting. (The acquiring of the lock is made by xchg or similar atomic operations).
[No thread sleeping, mostly used ...
Rails 3: Get Random Record
... @VictorS, no it won't #offset just goes to the next available record. I tested it with Ruby 1.9.2 and Rails 3.1
– SooDesuNe
Nov 11 '11 at 2:35
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