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MongoDB: How to query for records where field is null or not set?
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answered May 14 '12 at 21:55
jdijdi
79.8k1717 gold badges144144 silver badges180180 bronze badges
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How do I convert a byte array to Base64 in Java?
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231
Java 8+
Encode or decode byte arrays:
byte[] encoded = Base64.getEncoder().encode("Hello".getB...
ng-options with simple array init
...gt;</select>
See a working example here:
http://plnkr.co/edit/xEERH2zDQ5mPXt9qCl6k?p=preview
The trick is that AngularJS writes the keys as numbers from 0 to n anyway, and translates back when updating the model.
As a result, the HTML will look incorrect but the model will still be set pro...
Django - Difference between import django.conf.settings and import settings
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answered Jan 8 '12 at 20:16
user237076user237076
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Which version of C# am I using
...ndows\Microsoft.NET\Framework\v4.0.30319>csc /?
Microsoft (R) Visual C# 2010 Compiler version 4.0.30319.1
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Emacs mode for Stack Overflow's markdown
... by issuing
sudo apt-get install emacs-goodies-el
or if you're on emacs 24 (or have package.el on emacs 23) and Marmalade or Melpa you can install it with
M-x package-install RET markdown-mode
Install It's All Text.
Set It's All Text's preferences to use Emacs. Either you can set it to the exec...
Which regular expression operator means 'Don't' match this character?
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answered May 8 '11 at 5:22
Paolo StefanPaolo Stefan
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How do I convert a Vector of bytes (u8) to a string
...ing buf: &[u8]
//
fn main() {
let buf = &[0x41u8, 0x41u8, 0x42u8];
let s = match str::from_utf8(buf) {
Ok(v) => v,
Err(e) => panic!("Invalid UTF-8 sequence: {}", e),
};
println!("result: {}", s);
}
The conversion is in-place, and does not require a...
How to tell bash that the line continues on the next line
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edited Oct 19 '13 at 23:03
Paolo
14.9k1818 gold badges7575 silver badges108108 bronze badges
answer...