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Iterator Loop vs index loop [duplicate]
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TemplateRexTemplateRex
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How to generate keyboard events in Python?
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user648852's idea at least for me works great for OS X, here is the code to do it:
#!/usr/bin/env python
import time
from Quartz.CoreGraphics import CGEventCreateKeyboardEvent
from Quartz.CoreGraphics import CGEventPost
# Pyth...
How does the Java 'for each' loop work?
...Test B: 220,770,915 nanoseconds
B faster by 155,019,903 nanoseconds (40.75164734599769% faster)
[C:\java_code\]java TimeIteratorVsIndexIntArray 1000000
Test A: 326,373,762 nanoseconds
Test B: 202,555,566 nanoseconds
B faster by 123,818,196 nanoseconds (37.437545972215744% faster)
I also ran this ...
Are there disadvantages to using a generic varchar(255) for all text-based fields?
...s the space that can be specified for legibility).
email addresses - up to 64 bytes before the @, up to 255 bytes after. Never more, lest you break the Internet.
North American Phone Numbers are never more than 10 digits (excluding the country code).
Computers running (recent versions of) Windows c...
Seeding the random number generator in Javascript
...;>> 16, 2246822507);
h = Math.imul(h ^ h >>> 13, 3266489909);
return (h ^= h >>> 16) >>> 0;
}
}
Each subsequent call to the return function of xmur3 produces a new "random" 32-bit hash value to be used as a seed in a PRNG. Here's how you might u...
CSS filter: make color image with transparency white
...s.
Here's a JSFiddle changing the colour of the JSFiddle logo.
//Base64 source, but any local source will work
var src = "data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAC0AAAAgCAYAAACGhPFEAAAABGdBTUEAALGPC/xhBQAABzhJREFUWAnNWAtwXFUZ/v9zs4GUJJu+k7tb5DFAGWO1aal1sJUiY3FQQaWidqgPLAMqYzd9CB073Vodh...
Zoom in on a point (using scale and translate)
... scale /= 2;
}
scale = scale < 1 ? 1 : (scale > 64 ? 64 : scale);
// determine the location on the screen at the new scale
var xNew = (xScreen - xImage) / scale;
var yNew = (yScreen - yImage) / scale;
// save the current screen location
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What's the difference between the atomic and nonatomic attributes?
...cks Another fun one; on certain architectures (Can't remember which one), 64 bit values passed as an argument might be passed half in a register and half on the stack. atomic prevents cross-thread half-value reads. (That was a fun bug to track down.)
– bbum
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How can I auto-elevate my batch file, so that it requests from UAC administrator rights if required?
...ically check & get admin rights
:: see "https://stackoverflow.com/a/12264592/1016343" for description
::::::::::::::::::::::::::::::::::::::::::::
@echo off
CLS
ECHO.
ECHO =============================
ECHO Running Admin shell
ECHO =============================
:init
setlocal DisableDela...
What do the terms “CPU bound” and “I/O bound” mean?
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rlandster
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answered May 15 '09 at 13:07
unwindunwind
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