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Increasing the maximum number of TCP/IP connections in Linux
...he client side:
Increase the ephermal port range, and decrease the tcp_fin_timeout
To find out the default values:
sysctl net.ipv4.ip_local_port_range
sysctl net.ipv4.tcp_fin_timeout
The ephermal port range defines the maximum number of outbound sockets a host can create from a particular I.P. a...
Failed binder transaction when putting an bitmap dynamically in a widget
...ri() (slower) or the setImageViewBitmap() and recreating RemoteViews every time you update the notification.
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val-mutable versus var-immutable in Scala
... you can usually get the same effect from a mutable collection with better time complexity. Of the four possibilities (val and var, mutable and immutable), this one makes the least sense. I do often use val mutable.
– Jim Pivarski
Sep 11 '13 at 1:14
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'AND' vs '&&' as operator
...our code. If you do the same on a compiled language it only will take more time to compile but it will not take effect on runtime. I don't mean doing it once will mark a difference but on an entire application using php + javascript both wrote like the example... load times will be larger for sure. ...
Find a class somewhere inside dozens of JAR files?
...
some time ago, I wrote a program just for that: https://github.com/javalite/jar-explorer
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How to get all count of mongoose model?
... count() method behaved strange: when the collection was not empty, it sometimes returned nothing (undefined, null, zero or false - we could not investigate it further). We still did not find out what caused the problem since it was a race condition that happend very seldomly. Using countDocuments({...
Why doesn't this code simply print letters A to Z?
... 'z'+1 ≤ 'z'. (Since 'z'+1 = 'aa' ≤ 'z'. But 'za' ≤ 'z' is the first time the comparison is false.) Breaking when $i == 'z' would work, for instance.
Example here.
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Calculate business days
...ays
function getWorkingDays($startDate,$endDate,$holidays){
// do strtotime calculations just once
$endDate = strtotime($endDate);
$startDate = strtotime($startDate);
//The total number of days between the two dates. We compute the no. of seconds and divide it to 60*60*24
//We ...
MVC (Laravel) where to add logic
...n): Events are useful for things that can be thrown at any class any given time. Think, for instance, of sending notifications to a user.
When you need, you fire the event to send a notification at any class of your application. Then, you can have a class like UserNotificationEvents that handles al...
How to add a WiX custom action that happens only on uninstall (via MSI)?
...er currently immediately below.
This topic has been a headache for long time. I finally figured it out.
There are some solutions online, but none of them really works. And of course there is no documentation.
So in the chart below there are several properties that are suggested to use and the val...