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What is the theoretical maximum number of open TCP connections that a modern Linux box can have
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A single listening port can accept more than one connection simultaneously.
There is a '64K' limit that is often cited, but that is per client per server port, and needs clarifying.
Each TCP/IP packet has basically four fields for addressing. These are:
source...
How to get a DOM Element from a JQuery Selector
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You can access the raw DOM element with:
$("table").get(0);
or more simply:
$("table")[0];
There isn't actually a lot you need this for however (in my experience). Take your checkbox example:
$(":checkbox").click(function() {
if ($(this).is(":checked")) {
// do stuff
}
});
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Why do some claim that Java's implementation of generics is bad?
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How to change the name of a Django app?
...is).
Other references: you might also want to refer the below links for a more complete picture
Renaming an app with Django and South
How do I migrate a model out of one django app and into a new one?
How to change the name of a Django app?
Backwards migration with Django South
Easiest way to ren...
Get Image size WITHOUT loading image into memory
... in order to get the image dimensions for JPEG files, you may have to read more bytes than libmagic likes to read.
Rolled up my sleeves and came with this very untested snippet (get it from GitHub) that requires no third-party modules.
#-----------------------------------------------------------...
Converting between strings and ArrayBuffers
...codings other than JavaScript's default UTF-16 DOMStrings
giving much more flexibility. However, it would require us to link to or embed this library while TextEncoder/TextDecoder is being built-in in modern browsers.
Support
As of July/2018:
TextEncoder (Experimental, On Standard Track)
C...
Best architectural approaches for building iOS networking applications (REST clients)
...architectural approach for all iOS applications, but neither MVC nor the more modern MVVM patterns explain where to put network logic code and how to organize it in general.
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node and Error: EMFILE, too many open files
...5 but ulimit -a | grep "open files" == (-n) 1024 any clue how I could have more opened files than max limit?
– Kostanos
Jun 12 '17 at 15:06
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How does grep run so fast?
...es raw Unix input system calls and avoids copying data
after reading it. Moreover, GNU grep AVOIDS BREAKING THE INPUT INTO
LINES. Looking for newlines would slow grep down by a factor of
several times, because to find the newlines it would have to look at
every byte!
So instead of usi...