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How to remove leading and trailing zeros in a string? Python
... is also a general solution that strips both leading and trailing elements from an iterable:
Code
import more_itertools as mit
iterables = ["231512-n\n"," 12091231000-n00000","alphanum0000", "00alphanum"]
pred = lambda x: x in {"0", "\n", " "}
list("".join(mit.strip(i, pred)) for i in iterables...
Reading ePub format
...8) create an NSURL using fileURLWithPath:, where the path is the full path from (7c). Load this request using the UIWebView you created in (1).
You'll need to implement forward / backward buttons or swipes or something so that users can move from one chapter to another. Use the <spine> to wor...
How to add a touch event to a UIView?
...nizer.
Adding a Gesture in the Interface Builder
Drag a gesture recognizer from the object library onto your view.
Control drag from the gesture in the Document Outline to your View Controller code in order to make an Outlet and an Action.
This should be set by default, but also make sure that Use...
How to copy files across computers using SSH and MAC OS X Terminal [closed]
... ssh commands but I'm not sure how to use them in order to transfer files from one computer to another.
3 Answers
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python multithreading wait till all threads finished
...roceed to wait for t3). If t1 took the longest to execute, when you return from it both t1 and t2 will return immediately without blocking.
– Maksim Skurydzin
Aug 15 '12 at 12:06
1...
What is the difference between syntax and semantics in programming languages?
...rinted on each one. The rightmost wheel rotates the fastest; when it wraps from 9 back to zero, the wheel to its immediate left advances by one. When this wheel advances from 9 to 0, the one to its left advances, and so on.
– Jeff N
Jul 29 '13 at 19:20
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Do I really need to encode '&' as '&'?
... @Delan: while I try to make every page I write validate, I understand from reading his question that he doesn't care about "morally". He just cares if it works or not. They are two different philosophies and both have their pros and cons, and there is not a "correct" one. For example this websi...
Elegant way to check for missing packages and install them?
...
Yes. If you have your list of packages, compare it to the output from installed.packages()[,"Package"] and install the missing packages. Something like this:
list.of.packages <- c("ggplot2", "Rcpp")
new.packages <- list.of.packages[!(list.of.packages %in% installed.packages()[,"Pac...
Usages of Null / Nothing / Unit in Scala
...tom type is tied to its ability to express variance in type parameters."). From the article you linked to:
One other use of Nothing is as a return type for methods that never
return. It makes sense if you think about it. If a method’s return
type is Nothing, and there exists absolutely no ...
Detect Click into Iframe using JavaScript
...a click event.
By catching the mousedown you'd prevent the original click from getting to the iframe. If you could determine when the mouse button was about to be pressed you could try to get the invisible div out of the way so that the click would go through... but there is also no event that fire...