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chrome.tabs.query(
  {'active': true, 'currentWindow': true},
  function (tabs) {
    var tab = tabs[0]
    var url = tab.url;
    var title = tab.title;
    var pattern = /https:\/\/github.com\/pracstrat\/(\w+)\/issues\/(\w+)/
    var search = tab.url.match(pattern)

    jQuery.ajax({

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filename = 'foobar.zer.png'

def content_type
  extname = File.extname(filename)[1..-1]
  Mime::Type.lookup_by_extension(extname)
end

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gem 'carrierwave-mongoid', github: 'jnicklas/carrierwave-mongoid'
gem 'mongoid', github: 'mongoid/mongoid'

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rails (3.2.13)
pg (0.14.1)
pg_array_parser (0.0.8)
postgres_ext (0.3.1)
  activerecord (~> 3.2.0)
  pg_array_parser (~> 0.0.8)

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Objective-C for Rubyist

Basic Syntax

Message

[you say:@"Hello."];

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NSString *a = @"bar";
NSString *aSelector = @"uppercaseString";
NSString *b = [a performSelector:NSSelectorFromString(aSelector)];
//NSString *b = objc_msgSend(a, NSSelectorFromString(aSelector));
NSLog(@"b: %@", b);

//=> b: "BAR"

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body {
  font-family: 'HelveticaNeue-UltraLight', 'Helvetica Neue UltraLight', 'Helvetica Neue', Arial, Helvetica, sans-serif;
  font-weight: 100;
  letter-spacing: 1px;
}

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<?xml version="1.0" encoding="UTF-8"?>
<package xmlns="http://apple.com/itunes/importer" version="software5.1">
  <team_id>TEAM-ID</team_id>
  <software>
    <vendor_id>VENDOR-ID</vendor_id>
    <software_metadata>
      <versions>
        <version string="1.1.3">
          <locales>
            <locale name="en-US">

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Deploy Rails 4 app with Dokku on DigitalOcean

Install dokku

First create a Ubuntu 13.04 x64 droplet on DigitalOcean Control Panel

Then ssh with root account, run this in termianl:

$ wget -qO- https://raw.github.com/progrium/dokku/master/bootstrap.sh | sudo bash

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CSS font values

-apple-system-headline1
-apple-system-headline2
-apple-system-body
-apple-system-subheadline1
-apple-system-subheadline2
-apple-system-footnote
-apple-system-caption1