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How do you increase the max number of concurrent connections in Apache?
...hive.org/web/20160415001028/http://www.genericarticles.com/mediawiki/index.php?title=How_to_optimize_apache_web_server_for_maximum_concurrent_connections_or_increase_max_clients_in_apache
ServerLimit 16
StartServers 2
MaxClients 200
MinSpareThreads 25
MaxSpareThreads 75
ThreadsPerChild 25
First o...
When to use setAttribute vs .attribute= in JavaScript?
...nt('div');
// THIS WILL NOT CHANGE THE ATTRIBUTE
newElement.display = 'block';
But that's the same as
newElement.myCustomDisplayAttribute = 'block';
This means that adding a custom property will not be linked to .attributes[attr].nodeValue.
Performance
I've built a jsperf test case to show t...
What's the difference between Require.js and simply creating a element in the DOM? [closed]
...ially the one near the bottom that links to stevesouders.com/tests/require.php
– Dave Kanter
Sep 29 '15 at 22:35
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Heavy usage of Python at Google [closed]
...ction services. (Internally Google people use many technologies including PHP, C#, Ruby and Perl). Python is well suited to the engineering process at Google. The typical project at Google has a small team (3 people) and a short duration (3 months).
Not to forget that Guido van Rossum the c...
Character Limit in HTML
... to win. That's why it's far better to check it on the server side, with a PHP / Python / whatever script.
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How to throw a C++ exception
...
Just add throw where needed, and try block to the caller that handles the error. By convention you should only throw things that derive from std::exception, so include <stdexcept> first.
int compare(int a, int b) {
if (a < 0 || b < 0) {
...
CSS last-child selector: select last-element of specific class, not last child inside of parent?
...adding: 0 20px; list-style-type: square; }
.lfloat { float: left; display: block; }
.rfloat { float: right; display: block; }
/* apply style to last instance only */
#header .some-class {
border: 1px solid red;
padding-right: 0;
}
#header .some-class~.some-class {
border: 0;
padding-right: 2...
What does appending “?v=1” to CSS and Javascript URLs in link and script tags do?
...>
In case you're running pure HTML (instead of server pages JSP, ASP, PHP) the server won't help you. In browser, links are loaded before the JS runs, therefore you have to remove the links and load them with JS.
// front end cache bust
var cacheBust = ['js/StrUtil.js', 'js/protos.common.js', ...
Function to calculate distance between two coordinates
...
Derek's solution worked fine for me, and I've just simply converted it to PHP, hope it helps somebody out there !
function calcCrow($lat1, $lon1, $lat2, $lon2){
$R = 6371; // km
$dLat = toRad($lat2-$lat1);
$dLon = toRad($lon2-$lon1);
$lat1 = toRad($lat1);
$l...
Does JavaScript have “Short-circuit” evaluation?
...irst let's inspect the behaviour we are all familiar with, inside the if() block, where we use && to check whether the two things are true:
if (true && true) {
console.log('bar');
}
Now, your first instinct is probably to say: 'Ah yes, quite simple, the code executes the state...