danmaispace

#!/usr/bin/env ruby
#
# = gist(1)
#
# == USAGE
#  gist < file.txt
#  echo secret | gist -p  # or --private
#  echo "puts :hi" | gist -t rb
#  gist script.py
#

danmaispace

class BaseCodec
  def self.base_n_decode(s, alphabets)
    n = alphabets.length
    rv = pos = 0
    charlist = s.split("").reverse
    charlist.each do |char|
      rv += alphabets.index(char) * n ** pos
      pos += 1
    end
    return rv

danmaispace

/**
 * The final thing is to add a tap listener that is called whenever the user taps on the screen.
 * We do a quick check to make sure they're not tapping on the carousel indicators (tapping on
 * those indicators moves you between items so we don't want to override that), then either hide 
 * or show the info Component.
 */
Ext.Viewport.element.on('tap', function(e) {
    if (!e.getTarget('.x-carousel-indicator')) {
        if (titleVisible) {
            info.element.removeCls('apod-title-visible');

danmaispace

// ----------------------------------------------------------
// A short snippet for detecting versions of IE in JavaScript
// without resorting to user-agent sniffing
// ----------------------------------------------------------
// If you're not in IE (or IE version is less than 5) then:
//     ie === undefined
// If you're in IE (>=5) then you can determine which version:
//     ie === 7; // IE7
// Thus, to detect IE:
//     if (ie) {}

danmaispace

How to find a document by using MongoDB ID

published by chao on Thu, 01/05/2012 - 22:48
Categories:
TechnologyDatabase
MongoDBObjectID
When obtain the ID from request parameter: 4eec06b12dacbe7275000005, it is string, however, the format of _id is ObjectID. String and ObjectID are different types. MongoDB driver provides a function to serialize the 12 character string into a ObjectID type.

var ObjectId = collection.db.original.bson_serializer.ObjectID;
collection.findOne({'_id': ObjectId(idString)}, console.log);

danmaispace

This is a very simple benchmark comparing the response times of a few different webservers for an extremely simple response: just reply with a snippet of static json. It came up in discussion of a real-life service: in the actual server, a long-running thread/process periodically updates the state from a database, but requests will be served with the data directly from memory. It is imperative, though, that the latencies be extremely low for this service.

This comparison was partly inspired by this blog post.

Method

danmaispace

{
	"color_scheme": "Packages/RailsCasts Colour Scheme/RailsCastsColorScheme.tmTheme",
	"detect_slow_plugins": false,
	"file_exclude_patterns":
	[
		".DS_Store",
		".tags*",
		"*.pyc",
		"*.pyo",
		"*.exe",

danmaispace

[
	{ "keys": ["ctrl+s"], "command": "toggle_side_bar" },
  { "keys": ["ctrl+shift+."], "command": "erb", "context":
    [
      { "key": "selector", "operator": "equal", "operand": "text.html.ruby, text.haml, source.yaml, source.css, source.scss, source.js, source.coffee" }
    ]
  },
  { "keys": ["ctrl+shift+t"], "command": "todo"},
  { "keys": ["ctrl+shift+i"], "command": "reindent"}   
]

danmaispace

#unbind C-b
#set -g prefix C-a
setw -g mode-keys vi

# split window like vim
# vim's defination of a horizontal/vertical split is revised from tumx's
bind s split-window -h
bind v split-window -v
# move arount panes wiht hjkl, as one would in vim after C-w
bind h select-pane -L

danmaispace

search replace on regular expressions in Sublime Text 2

Find: /images/(\w+).gif
Replace: /assets/\1.gif

Will replace "/images/logo.gif" to "/assets/logo.gif".