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Java enum - why use toString instead of name
...t obvious to me until I read your comments.
– martinatime
May 5 '14 at 15:57
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Python, creating objects
...not a constructor, "because the object has already been constructed by the time __init__ is called, and you already have a valid reference to the new instance of the class." (diveintopython.net/object_oriented_framework/…)
– Brian Z
Apr 25 '15 at 13:04
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How to get past the login page with Wget?
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If you need it for one time use, you can log in via browser and copy needed headers afterwards:
Use "Copy as cURL" in the Network tab of Developer Tools (reload the page after opening) and replace curl's header flag -H and --data with wget's --he...
Purpose of memory alignment
... that the 2 LSBs are always 0 (e.g., 32-bit machines) then it can access 4 times more memory (the 2 saved bits can represent 4 distinct states), or the same amount of memory with 2 bits for something like flags. Taking the 2 LSBs off of an address would give you a 4-byte alignment; also referred to ...
How to subtract a day from a date?
I have a Python datetime.datetime object. What is the best way to subtract one day?
6 Answers
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Can I use jQuery with Node.js?
... $.on('ready', function () {
// do some stuff to the dom in real-time
$('body').append('Hello World');
$('body').append('<input type="text" />');
$('input').live('click', function () {
console.log('input clicked');
// ...
});
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Can we instantiate an abstract class?
...us direct subclass of the class named by T is declared. It is a compile-time error if the
class denoted by T is a final class.
If T denotes an interface, then an anonymous direct subclass of Object that implements the interface named by T is declared.
In either case, the body of the s...
For each row return the column name of the largest value
...ast"]), rowid, mult="first"]
Benchmarking:
# data.table solution
system.time({
DT <- data.table(value=unlist(DF, use.names=FALSE),
colid = 1:nrow(DF), rowid = rep(names(DF), each=nrow(DF)))
setkey(DT, colid, value)
t1 <- DT[J(unique(colid), DT[J(unique(colid)), value, mult="las...
How to select date from datetime column?
I have a column of type "datetime" with values like 2009-10-20 10:00:00
8 Answers
8
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Java's Virtual Machine and CLR
...a Virtual Machine works versus how the .NET Framework Common Language Runtime (CLR) works?
5 Answers
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