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What's the 'Ruby way' to iterate over two arrays at once
... more symmetrical. Probably not as fast, though, since you're creating the extra [a,b] array.
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How to get the parents of a Python class?
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If you want all the ancestors rather than just the immediate ones, use inspect.getmro:
import inspect
print inspect.getmro(cls)
Usefully, this gives you all ancestor classes in the "method resolution order" -- i.e. the order in which ...
How to sleep for five seconds in a batch file/cmd [duplicate]
...ait for. If the accuracy of the wait time is important (ie a second or two extra delay is not acceptable), you can use this approach:
powershell -command "$sleepUntil = [DateTime]::Parse('%date% %time%').AddSeconds(5); $sleepDuration = $sleepUntil.Subtract((get-date)).TotalMilliseconds; start-sleep...
Does Java SE 8 have Pairs or Tuples?
...ecord CountForIndex(int index, long count) {}
public static void main(String[] args) {
boolean [][] directed_acyclic_graph = new boolean[][]{
{false, true, false, true, false, true},
{false, false, false, true, false, true},
{false, f...
How to remove convexity defects in a Sudoku square?
...(ri+1)*50-1 , ci*50:(ci+1)*50-1].copy TypeError: long() argument must be a string or a number, not 'builtin_function_or_method'
– user898678
Feb 6 '13 at 21:38
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How to organize large R programs?
...ome silly performance mistakes when I first started out with R.
When to extract logical units into their own physical units (like source files and bigger groupings like packages)? I have two cases. First, if the file gets too large and scrolling around among logically unrelated units is an anno...
Border length smaller than div width?
...gt;Item 1</div>
<div>Item 2</div>
No need to use extra markup for presentational purpose. :after is also supported from IE8.
edit:
if you need a right-aligned border, just change left: 0 with right: 0
if you need a center-aligned border just simply set left: 50px;
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Why is Scala's immutable Set not covariant in its type?
...inference is good enough to figure out that you want CharSequences and not Strings in some situations. In particular, the following works for me in 2.7.3:
import scala.collections.immutable._
def findCharSequences(): Set[CharSequence] = Set("Hello", "World")
As to how to create immutable.HashSets...
method of iterating over sqlalchemy model's defined columns?
...l exclude SA magic attributes, but will not exclude the relations. So basically it might load the dependencies, parents, children etc, which is definitely not desirable.
But it is actually much easier because if you inherit from Base, you have a __table__ attribute, so that you can do:
for c in Jo...
Finding the number of days between two dates
...t all of Europe moved the clock back an hour. That means that today has an extra 3600 seconds, and that ought to be reflected in the UNIX timestamps. If it is, then that means that today will count for two days with the above way of computing the number of days. And I'm not even starting about leap ...