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Can I multiply strings in Java to repeat sequences? [duplicate]
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The easiest way in plain Java with no dependencies is the following one-liner:
new String(new char[generation]).replace("\0", "-")
Replace generation with number of repetitions, and the "-" with the string (or char) you want repeated.
All this does is create an empty string containing n n...
Why does Python code use len() function instead of a length method?
....__len__ than to force people to implement .len(). Its the same thing, and one looks much cleaner. If the language is going to have an OOP __len__, what in the world is the point of making len(..)
– alternative
Nov 7 '11 at 21:13
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When is assembly faster than C?
One of the stated reasons for knowing assembler is that, on occasion, it can be employed to write code that will be more performant than writing that code in a higher-level language, C in particular. However, I've also heard it stated many times that although that's not entirely false, the cases wh...
JavaScript naming conventions [closed]
... Thanks for linking to the list of style guides. I don't know if one is worth following exclusively or how to decide yet which one or whether I should use an amalgamation. But knowing where to find several in one place is a real boon.
– Roger_S
Dec 9 ...
Disable single warning error
...d I tried to read between the lines and solve his actual problem (arriving one minute after your comment :P).
– Matteo Italia
Aug 23 '11 at 10:18
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How to verify an XPath expression in Chrome Developers tool or Firefox's Firebug?
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Just one warning on XPath and browsers, as this leads to lots of confusion: stackoverflow.com/questions/18241029/…
– Jens Erat
Mar 22 '14 at 6:52
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Read first N lines of a file in python
...rmance to be similar, maybe the first to be slightly faster. But the first one won't work if the file doesn't have at least N lines. You are best to measure the performance against some typical data you will be using it with.
– John La Rooy
Nov 20 '09 at 0:47
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What are best practices that you use when writing Objective-C and Cocoa? [closed]
...k about in a class? That is especially true in an environment like the iPhone.
3.5) In table cells, make every element (including the cell itself) opaque for performance. That means setting the appropriate background color in everything.
3.6) When using an NSURLConnection, as a rule you may well ...
Change Name of Import in Java, or import two classes with the same name
...t two classes with the same name and use both of them unqualified.
Import one class and use the fully qualified name for the other one, i.e.
import com.text.Formatter;
private Formatter textFormatter;
private com.json.Formatter jsonFormatter;
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Are there pronounceable names for common Haskell operators? [closed]
... (as it is the same as Control.Monad.ap)
$ (none, just as " " [whitespace])
. pipe to a . b: "b pipe-to a"
!! index
! index / strict a ! b: "a index b", foo !x: foo strict x
<|> or / alternative expr <|> term: "expr or term...