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Is floating point math broken?
...e problem is that numbers are represented in this format as a whole number times a power of two; rational numbers (such as 0.1, which is 1/10) whose denominator is not a power of two cannot be exactly represented.
For 0.1 in the standard binary64 format, the representation can be written exactly as...
How do I remove the space between inline/inline-block elements?
...It's simple. It works everywhere. It's the pragmatic solution.
You do sometimes have to carefully consider where whitespace will come from. Will appending another element with JavaScript add whitespace? No, not if you do it properly.
Let's go on a magical journey of different ways to remove the wh...
How to delete and replace last line in the terminal using bash?
...g code will prevent junk output:
before the line is written for the first time, do
tput sc
which saves the current cursor position. Now whenever you want to print your line, use
tput rc
tput ed
echo "your stuff here"
to first return to the saved cursor position, then clear the screen from cur...
Display numbers with ordinal suffix in PHP
...n a single line by leveraging similar functionality in PHP's built-in date/time functions. I humbly submit:
Solution:
function ordinalSuffix( $n )
{
return date('S',mktime(1,1,1,1,( (($n>=10)+($n>=20)+($n==0))*10 + $n%10) ));
}
Detailed Explanation:
The built-in date() function has suf...
Linq to Entities - SQL “IN” clause
...er Join in this context. If I would have used contains, it would iterate 6 times despite if the fact that there are just one match.
var desiredNames = new[] { "Pankaj", "Garg" };
var people = new[]
{
new { FirstName="Pankaj", Surname="Garg" },
new { FirstName="Marc", Surname="Gravel...
Why use pointers? [closed]
... the allocation again... */
free(x);
/* We can set the size at declaration time as well */
char xx[6];
xx[0] = 'H';
xx[1] = 'e';
xx[2] = 'l';
xx[3] = 'l';
xx[4] = 'o';
xx[5] = '\0';
printf("String \"%s\" at address: %d\n", xx, xx);
Do note that you can still use the variable x after you have perfo...
Equivalent of String.format in jQuery
...ting (and then discarding) a RegEx object for each and every argument each time format gets called might overtax the garbage collector.
– mckoss
Mar 18 '11 at 5:54
...
Should I embed images as data/base64 in CSS or HTML
...the HTML page instead! And makes images uncacheable. They get loaded every time the containing page or style sheet get loaded.
Base64 encoding bloats image sizes by 33%.
If served in a gzipped resource, data: images are almost certainly going to be a terrible strain on the server's resources! Images...
Polymorphism in C++
... return *this; }
double n_;
};
void f(Base& x) { x += 2; } // run-time polymorphic dispatch
Other related mechanisms
Compiler-provided polymorphism for builtin types, Standard conversions, and casting/coercion are discussed later for completeness as:
they're commonly intuitively under...
How to loop through array in jQuery?
... handy, if your loop body is complex the scoping of a function call is sometimes useful, no need for an i variable in your containing scope.
Disadvantages: If you're using this in the containing code and you want to use this within your forEach callback, you have to either A) Stick it in a variable...