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What does the “at” (@) symbol do in Python?
...tors, which includes @, which makes it also an operator:
The following tokens are operators:
+ - * ** / // % @
<< >> & | ^ ~
< > <= >= == !=
and in the next page, the Dat...
Passing an Array as Arguments, not an Array, in PHP
...
As has been mentioned, as of PHP 5.6+ you can (should!) use the ... token (aka "splat operator", part of the variadic functions functionality) to easily call a function with an array of arguments:
<?php
function variadic($arg1, $arg2)
{
// Do stuff
echo $arg1.' '.$arg2;
}
$array ...
Check if a string contains a string in C++
...and many other staff.You can compare std::string to the string api in Java.PS:Also I do think contains is much more elegant than find to check if a string contains another string.
– Geng Jiawen
Jun 23 '14 at 8:01
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Is double square brackets [[ ]] preferable over single square brackets [ ] in Bash?
...ke = and =~.
In Bashese: [ is a built-in command, and [[ is a keyword: https://askubuntu.com/questions/445749/whats-the-difference-between-shell-builtin-and-shell-keyword
<
[[ a < b ]]: lexicographical comparison
[ a \< b ]: Same as above. \ required or else does redirection like for an...
Limitations of Intel Assembly Syntax Compared to AT&T [closed]
To me, Intel syntax is much easier to read. If I go traipsing through assembly forest concentrating only on Intel syntax, will I miss anything? Is there any reason I would want to switch to AT&T (outside of being able to read others' AT&T assembly)? My first clue is that gdb uses AT&T by default.
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PHP Regex to check date is in YYYY-MM-DD format
...tice under any circumstances. Here's how:
explode is limited to return 3 tokens (so that if the input is "1-2-3-4", $d will become "3-4")
ctype_digit is used to make sure that the input does not contain any non-numeric characters (apart from the dashes)
array_pad is used (with a default value that...
Why is using 'eval' a bad practice?
...e world are just strings. I'm unclear on what you're talking about. Perhaps you should provide a more complete blog post and link to it here.
– S.Lott
Jan 9 '12 at 0:01
...
MySQL: multiple tables or one table with many columns?
...ple the date-of-birth of a user will not be updated ever, but the back end token may be invalidated after a period of time and will require frequent updates. Would it be better if I separate the tables in this manner to improve the performance? I'll now go read about the wiki that you mentioned :)
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How do I pass command-line arguments to a WinForms application?
...nt is equal to String.Empty. The remaining elements contain any additional tokens entered on the command line.
– EKanadily
Apr 2 '14 at 7:15
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What are the differences between segment trees, interval trees, binary indexed trees and range trees
...
@ps06756 search algorithms often have a runtime of log(n) where n is the inputsize but can yield results that are linear in n which can't be done in logarithmic time (outputting n numbers in log(n) time is not possible).
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