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Is 'switch' faster than 'if'?
... optimizations a compiler can make on a switch. I don't think the oft-mentioned "jump-table" is a very useful one though, as it only works when the input can be bounded some way.
C Pseudocode for a "jump table" would be something like this -- note that the compiler in practice would need to insert ...
How to get child element by class name?
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Use doc.childNodes to iterate through each span, and then filter the one whose className equals 4:
var doc = document.getElementById("test");
var notes = null;
for (var i = 0; i < doc.childNodes.length; i++) {
if (doc.childNodes[i].className == "4") {
notes = doc.childNodes[i];
...
python generator “send” function purpose?
Can someone give me an example of why the "send" function associated with Python generator function exists? I fully understand the yield function. However, the send function is confusing to me. The documentation on this method is convoluted:
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Batch file: Find if substring is in string (not in a file)
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@Gary, since that wasn't one of the requirements of this question, you probably should have asked a different question, perhaps linking back to this one as a reference. There's no shortage of people willing to help out. In fact, you still shoud ask t...
xkcd style graphs in MATLAB
...,[0.8 0.65],...
'string',sprintf('text%shere',char(10)),'headStyle','none','lineWidth',1.5,...
'fontName','Comic Sans MS','fontSize',14,'verticalAlignment','middle','horizontalAlignment','left')
%# capture with export_fig
im = export_fig('-nocrop',fh);
%# add a bit of border to avoid bla...
Reflection - get attribute name and value on property
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If you just want one specific Attribute value For instance Display Attribute you can use the following code:
var pInfo = typeof(Book).GetProperty("Name")
.GetCustomAttribute<DisplayAttribute>();
var name = ...
Count how many files in directory PHP
...ne it being fairly confusing/unreadable for most PHP devs. I would go with one of the approaches in the other answers.
– user428517
Oct 9 '12 at 16:10
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How to compare Unicode characters that “look alike”?
... and you need them to be equal, you need to handle it manually, or replace one char with another before comparison. Or use the following code:
public void Main()
{
var s1 = "μ";
var s2 = "µ";
Console.WriteLine(s1.Equals(s2)); // false
Console.WriteLine(RemoveDiacritics(s1).Equal...
Getting the name of a variable as a string
...ossible without recursively walking the tree of named objects; a name is a one-way reference to an object. A common or garden-variety Python object contains no references to its names. Imagine if every integer, every dict, every list, every Boolean needed to maintain a list of strings that represent...
Choosing a Java Web Framework now? [closed]
...entation frameworks hell: there is no single answer to your question (like one year ago), there are dozen of frameworks around there and no clear winner. Just to cite a few:
JSF: Lots of skeptics about this component based framework, including me so I'm not the best one to talk about it but...
JS...