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Fast way of counting non-zero bits in positive integer
...seander/bithacks.html#CountBitsSetTable
POPCOUNT_TABLE16 = [0] * 2**16
for index in range(len(POPCOUNT_TABLE16)):
POPCOUNT_TABLE16[index] = (index & 1) + POPCOUNT_TABLE16[index >> 1]
def popcount32_table16(v):
return (POPCOUNT_TABLE16[ v & 0xffff] +
POPCOUNT...
Get index of element as child relative to parent
...
$("#wizard li").click(function () {
console.log( $(this).index() );
});
However rather than attaching one click handler for each list item it is better (performance wise) to use delegate which would look like this:
$("#wizard").delegate('li', 'click', function () {
console.l...
Get selected value in dropdown list using JavaScript
... = document.getElementById("ddlViewBy");
var strUser = e.options[e.selectedIndex].value;
Would make strUser be 2. If what you actually want is test2, then do this:
var e = document.getElementById("ddlViewBy");
var strUser = e.options[e.selectedIndex].text;
Which would make strUser be test2
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What is Full Text Search vs LIKE
...for better recall.
Most full text search implementations use an "inverted index". This is an index where the keys are individual terms, and the associated values are sets of records that contain the term. Full text search is optimized to compute the intersection, union, etc. of these record sets, a...
Does VBA have Dictionary Structure?
...g. c.Item("Key2") ) in the VBA Dictionary IS hashed, but lookup by integer index (eg. c.Item(20) )is not - it's a linear for/next style search and should be avoided. Best to use collections for only string key lookups or for each iteration.
– Ben McIntyre
Dec 2...
How do I get the path of the Python script I am running in? [duplicate]
...s not provide an __file__ variable. For reference: http://www.py2exe.org/index.cgi/Py2exeEnvironment
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How can I represent an 'Enum' in Python?
...))). Then my_enum can be used in look-up, e.g., my_enum['Item0'] can be an index into a sequence. You might want to wrap the result of str.split in a function that throws an exception if there are any duplicates.
– Ana Nimbus
Jun 2 '18 at 3:51
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Which mime type should I use for mp3
...g to decide which mime type to choose for returning mp3 data (served up by php)
5 Answers
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When to use setAttribute vs .attribute= in JavaScript?
... property attributes that returns a live NamedNodeMap of Attr objects. The indexes of this collection may be different among browsers. So, the order is not guaranteed. NamedNodeMap has methods for adding and removing attributes (getNamedItem and setNamedItem, respectively).
Notice that though XML i...
What is the coolest thing you can do in
... 2011-09-02
I recently discovered that Microsoft Agent is not natively installed on Windows 7. However it is offered as a separate download here. I have not tested this so cannot verify whether it operates.
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