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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...
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
...
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?
...
rlandster
5,9981212 gold badges4646 silver badges7676 bronze badges
answered May 15 '09 at 13:07
unwindunwind
...
Compiled vs. Interpreted Languages
...8
Marie
16455 bronze badges
answered Jul 16 '10 at 14:00
mikeramikera
99.8k2323 gold ba...
Why '&&' and not '&'?
... = 00110010 (in decimal: 32+16+2 = 50)
b = 01010011 (in decimal: 64+ 16+2+1 = 83)
----------------
a & b = 00010010 (in decimal: 16+2 = 18)
a | b = 01110011 (in decimal: 64+32+16+2+1 = 115)
while a logical operator only works in bool:
a = true
b = false
---------...
Python - Create a list with initial capacity
...
Ned BatchelderNed Batchelder
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...
How can I export tables to Excel from a webpage [closed]
...sheet name as well. Same type of solution; stackoverflow.com/questions/17126453/…
– Espen Schulstad
Mar 13 '15 at 10:50
2
...
How do I safely pass objects, especially STL objects, to and from a DLL?
... datatypes have the same sizes regardless of whether your app is 32-bit or 64-bit. However, since the size of a given datatype is enforced by the compiler, not by any standard (all the standard guarantees is that 1 == sizeof(char) <= sizeof(short) <= sizeof(int) <= sizeof(long) <= sizeof...