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How to avoid isset() and empty()
...ost', 'N/A');
As an additional example, take the RealIP() function for a test:
$ip = Value($_SERVER, 'HTTP_CLIENT_IP', Value($_SERVER, 'HTTP_X_FORWARDED_FOR', Value($_SERVER, 'REMOTE_ADDR')));
Neat, huh? ;)
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What is the difference between 'classic' and 'integrated' pipeline mode in IIS7?
...t mapped all
requests to be handled by aspnet_isapi.dll.
Be sure to test your existing applications for compatibility in
Integrated mode before upgrading a production environment to IIS 7.0
and assigning applications to application pools in Integrated mode.
You should only add an applic...
Django: “projects” vs “apps”
...easonable to have something like:
site/
models.py
settings.py
tests.py
urls.py
views.py
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How to build an android library with Android Studio and gradle?
...s (where your assets go)
| | \-- AndroidManifest.xml
| \-- instrumentTest (test project)
| \-- java (where your java code goes)
+-- build.gradle
\-- settings.gradle
If you only have the one project, the settings.gradle file isn't needed. However you want to add more projects, so we nee...
What is the difference between atomic / volatile / synchronized?
...ed and are not interrupted by other threads. For example, an increment-and-test operation requires the variable to be incremented and then compared to another value; an atomic operation guarantees that both of these steps will be completed as if they were a single indivisible/uninterruptible operati...
What's the right way to pass form element state to sibling/parent elements?
...onent {
constructor (props) {
super(props)
this.state = { data: 'test' }
}
render () {
return (
<div>
<C1 onUpdate={this.onUpdate.bind(this)}/>
<C2 data={this.state.data}/>
</div>
)
}
onUpdate (data) { this.setState({ data...
Why are joins bad when considering scalability?
...op of the list. A lot of (cough) developers seem to forget about them when testing on a small data set and then bring the database to its knees in production. I have seen queries that run to the order of 100,000 times faster simply by adding indexes. And that's arbitrary indexes without even doing a...
Load and execution sequence of a web page?
...ple when the parser comes across this line:
<a href="#" onclick="alert('test');return false;" style="font-weight:bold">a hypertext link</a>
The parser will make 3 calls, two to Javascript and one to CSS. Firstly, the parser will create this element and register it in the DOM namespace, ...
Why are side-effects modeled as monads in Haskell?
...
In short, the greatest lower bound on what all monads together describe is a blind, meaningless march into the future. IO is a pathological case precisely because it offers almost nothing more than this minimum. In specific cases, types may re...