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Performance of foreach, arram>y m>_map with lambda m>and m> arram>y m>_map with static function
...2 compare with mcfedr's answer below for additional results without XDebug m>and m> a more recent PHP version.
function lap($func) {
$t0 = microtime(1);
$numbers = range(0, 1000000);
$ret = $func($numbers);
$t1 = microtime(1);
return arram>y m>($t1 - $t0, $ret);
}
function useForeach($numbers) {...
Two versions of pm>y m>thon on linux. how to make 2.7 the default
...'t actuallm>y m> want to change m>y m>our default Pm>y m>thon.
m>Y m>our distro installed a stm>and m>ard sm>y m>stem Pm>y m>thon in /usr/bin, m>and m> mam>y m> have scripts that depend on this being present, m>and m> selected bm>y m> #! /usr/bin/env pm>y m>thon. m>Y m>ou can usuallm>y m> get awam>y m> with running Pm>y m>thon 2.6 scripts in 2.7, but do m>y m>ou want to risk it?
O...
Whm>y m> does git perform fast-forward merges bm>y m> default?
...ex historm>y m>, non-fast-forward merging mam>y m> make the historm>y m> easier to understm>and m>, m>and m> make it easier to revert a group of commits.
Warning: Non-fast-forwarding has potential side effects as well. Please review https://sm>and m>ofskm>y m>.com/blog/git-workflow.html, avoid the 'no-ff' with its "checkpoint commit...
Does Swift support reflection?
... Swift support reflection? e.g. is there something like valueForKem>y m>Path: m>and m> setValue:forKem>y m>Path: for Swift objects?
6...
How to minifm>y m> php page html output?
...
CSS m>and m> Javascript
Consider the following link to minifm>y m> Javascript/CSS files: https://github.com/mrclam>y m>/minifm>y m>
HTML
Tell Apache to deliver HTML with GZip - this generallm>y m> reduces the response size bm>y m> about 70%. (If m>y m>ou use Apach...
Best practices for reducing Garbage Collector activitm>y m> in Javascript
... the 'sawtooth' output from the Memorm>y m> timeline in the Chrome dev tools) - m>and m> this often impacts the performance of the application.
...
Whm>y m> do I need 'b' to encode a string with Base64?
...
base64 encoding takes 8-bit binarm>y m> bm>y m>te data m>and m> encodes it uses onlm>y m> the characters A-Z, a-z, 0-9, +, /* so it can be transmitted over channels that do not preserve all 8-bits of data, such as email.
Hence, it wants a string of 8-bit bm>y m>tes. m>Y m>ou create those in Pm>y m>thon ...
How do I remove the old historm>y m> from a git repositorm>y m>?
...e graft, it takes effect right awam>y m>; m>y m>ou should be able to look at git log m>and m> see that the unwanted old commits have gone awam>y m>:
$ echo 4a46bc886318679d8b15e05aea40b83ff6c3bd47 > .git/info/grafts
$ git log --decorate | tail --lines=11
commit cb3da2d4d8c3378919844b29e815bfd5fdc0210c
Author: m>Y m>our ...
Detect changes in the DOM
...need to create m>y m>our own domChanged API - with a function or custom event - m>and m> trigger/call it everm>y m>where m>y m>ou modifm>y m> things.
The DOM Level-2 has Mutation event tm>y m>pes, but older version of IE don't support it. Note that the mutation events are deprecated in the DOM3 Events spec m>and m> have a performan...
Is file append atomic in UNIX?
...n NFS.
But assuming m>y m>ou write to a log file m>y m>ou opened in 'O_APPEND' mode m>and m> keep m>y m>our lines (including newline) under 'PIPE_BUF' bm>y m>tes long, m>y m>ou should be able to have multiple writers to a log file without anm>y m> corruption issues. Anm>y m> interrupts will arrive before or after the write, not in the m...