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Why can't static methods be abstract in Java?
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72
The abstract annotation to a method indicates that the method MUST be overriden in a subclass.
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How to crop an image using PIL?
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ninjageckoninjagecko
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How do I find out which DOM element has the focus?
...n your fiddle to create a more elaborate playground: jsfiddle.net/mklement/72rTF. You'll find that the only major browser (as of late 2012) that can actually focus such a div is Firefox 17, and only by tabbing to it. The types of elements that ALL major browsers return via document.activeElement are...
How to define optional methods in Swift protocol?
...)? = { info in
if info.weight < 200 && info.height > 72 {
return true
}
return false
}
//Or leave out the implementation and declare it as:
//var isInfoHealthy: (Info) -> (Bool)?
}
You can then use "?" to check whether or not the f...
Sending Email in Android using JavaMail API without using the default/built-in app
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72
Thank you for your valuable information. Code is working fine. I am able to add attachment also...
Less aggressive compilation with CSS3 calc
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72
For future readers, you can also escape just the operator, enabling you to use variables as well. Example: calc(@somePercent ~"-" @someLeng...
How to encrypt/decrypt data in php?
...opular choices available:
PBKDF2 (Password Based Key Derivation Function v2)
bcrypt (aka Blowfish)
This answer will use an example with bcrypt.
Generation
A password hash can be generated like this:
$password = 'my password';
$random = openssl_random_pseudo_bytes(18);
$salt = sprintf('$2y$%02...
How to find out what group a given user has?
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BombeBombe
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How to add new item to hash
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72
If you want to add new items from another hash - use merge method:
hash = {:item1 => 1}
ano...
Gradients on UIView and UILabels On iPhone [duplicate]
...endall Helmstetter GelnerKendall Helmstetter Gelner
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