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... elements can be done faster than looking at each individual element every time you perform these operations. The specific algorithms used are explained in the Wikipedia article. Pythons hashing algorithms are explained on effbot.org and pythons __hash__ function in the python reference.
Some facts...
Why should we typedef a struct so often in C?
...
Using a typedef avoids having to write struct every time you declare a variable of that type:
struct elem
{
int i;
char k;
};
elem user; // compile error!
struct elem user; // this is correct
share...
Are loops really faster in reverse?
I've heard this quite a few times. Are JavaScript loops really faster when counting backward? If so, why? I've seen a few test suite examples showing that reversed loops are quicker, but I can't find any explanation as to why!
...
Timeout command on Mac OS X?
Is there an alternative for the timeout command on Mac OSx. The basic requirement is I am able to run a command for a specified amount of time.
...
Convert string to integer type in Go?
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Here are three ways to parse strings into integers, from fastest runtime to slowest:
strconv.ParseInt(...) fastest
strconv.Atoi(...) still very fast
fmt.Sscanf(...) not terribly fast but most flexible
Here's a benchmark that shows usage and example timing for each function:
package main
...
In-place edits with sed on OS X
... local source control sed -i "" without backups should be fine most of the time (or just git init && git add -A . && git commit -m 'backup' prior to running sed in -i mode).
– cfeduke
May 29 '14 at 14:59
...
JavaScript/regex: Remove text between parentheses
...atches any non-whitespace character)
*? matches between zero and unlimited times
\) matches the character ) literally
g matches globally
Code Example:
var str = "Hello, this is Mike (example)";
str = str.replace(/ \([\s\S]*?\)/g, '');
console.log(str);
.as-console-wrapper {top: 0}
...
Python CSV error: line contains NULL byte
...a valid CSV file, in another folder or on another machine or at some other time. Note that your od output wasn't from an XLS file.
– John Machin
Nov 15 '10 at 21:48
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MVC4 StyleBundle not resolving images
...other answers were necessary on older ASP.NET builds, can't say don't have time to retrospectively test all that.
To clarify, here is an example:
I have these files...
~/Content/Images/Backgrounds/Some_Background_Tile.gif
~/Content/Site.css - references the background image relatively, i.e. back...
Java generics T vs Object
...dvantages:
no need of casting (the compiler hides this from you)
compile time safety that works. If the Object version is used, you won't be sure that the method always returns Foo. If it returns Bar, you'll have a ClassCastException, at runtime.
...