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JavaScript OR (||) variable assignment explanation
...ple an exploitation of this feature, and I believe it makes code harder to read.
var messages = 0;
var newMessagesText = "You have " + messages + " messages.";
var noNewMessagesText = "Sorry, you have no new messages.";
alert((messages && newMessagesText) || noNewMessagesText);
Inside the...
How to pull a random record using Django's ORM?
...
i read that it's slow in mysql, as mysql has incredibly inefficient random ordering.
– Brandon Henry
Nov 13 '09 at 19:31
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Input with display:block is not a block, why not?
...ss here, but I came here looking for the right(tm) answer, and also gladly read the part where @SpliFF specifically mentions he would prefer a "direct answer to a workaround, yet you still add another redundant (as in, repeated many times both at SO and elsewhere on the Internet) answer, seemingly i...
Chaining multiple MapReduce jobs in Hadoop
...utorial I found SequenceFileOutputFormat "Writes binary files suitable for reading into subsequent MapReduce jobs" and the matching SequenceFileInputFormat which make it all very easy to do. Thanks.
– Niels Basjes
May 17 '10 at 9:14
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Is it possible to put CSS @media rules inline?
... This is an other question, because the main goal of an Email is to be reading by a Client Email and many Client Email do not support embedding <style>, or media queries or all HTML/CSS feature. So actually the problem is more bigger than that. I only know you are able to create email disp...
Adding a library/JAR to an Eclipse Android project
...ted for use on Android.)
NOTE
Step 5 may not be needed, if the lib is already included in your build path. Just ensure that its existence first before adding it.
What you've done here accomplishes two things:
Includes a Dalvik-converted JAR
in your Android project.
Makes Java definitions avail...
Send POST data using XMLHttpRequest
...equestHeader('Content-type', 'application/x-www-form-urlencoded');
http.onreadystatechange = function() {//Call a function when the state changes.
if(http.readyState == 4 && http.status == 200) {
alert(http.responseText);
}
}
http.send(params);
...
PHP namespaces and “use”
...stering an autoloader (e.g. with spl_autoload_register). You might want to read PSR-4 to see a suitable autoloader implementation.
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@selector() in Swift?
...g the right KeyPath-based API instead of selectors if appropriate.
You can read more about selectors under Interacting with Objective-C APIs in Using Swift with Cocoa and Objective-C.
Note: Before Swift 2.2, Selector conformed to StringLiteralConvertible, so you might find old code where bare string...
What is setup.py?
....py
│ ├── __init__.py
│ └── internals.py
├── README
├── requirements.txt
└── setup.py
Then, you do the following in your setup.py script so that it can be installed on some machine:
from setuptools import setup
setup(
name='foo',
version='1.0',
...