zjhiphop

This post examines the features of [R Markdown](http://www.rstudio.org/docs/authoring/using_markdown) 
using [knitr](http://yihui.name/knitr/) in Rstudio 0.96.
This combination of tools provides an exciting improvement in usability for 
[reproducible analysis](http://stats.stackexchange.com/a/15006/183).
Specifically, this post 
(1) discusses getting started with R Markdown and `knitr` in  Rstudio 0.96;
(2) provides a basic example of producing console output and plots using R Markdown;
(3) highlights several code chunk options such as caching and controlling how input and output is displayed;
(4) demonstrates use of standard Markdown notation as well as the extended features of formulas and tables; and 
(5) discusses the implications of R Markdown.

zjhiphop

library(ggplot2)
library(scales)

# load data:
log <- data.frame(Date = c("2013/05/25","2013/05/28","2013/05/31","2013/06/01","2013/06/02","2013/06/05","2013/06/07"), 
  Quantity = c(9,1,15,4,5,17,18))
log
str(log)

# convert date variable from factor to date format:

zjhiphop

##Chrome Packaged Apps

Introduction

Introduced at Google I/O 2012, Chrome packaged apps are a new way to develop apps that are running 'natively' within Chrome on the desktop as well as on Chrome mobile in the near future. I'm currently in the middle of a project where I develop a Chrome packaged app and in this article I would like to share my experience with the development of packaged apps.

Please note: This article should give you a basic insight of topics that I think are helpful to know for developing packaged apps. Furthermore I will give links to each topic, so you can dive deeper into that specific topic if you want to. It's not the goal of this article to act as a complete introduction to Chrome packaged apps, for a much more detailed overview of packaged apps development, please look at the official packaged app documentation.

What are Chrome Packaged Apps

Chrome packaged apps are applic

zjhiphop

/*
	Infinite List View
	
	creates <ul> with triggers for infinite scrolling
	
	@author Kevin Jantzer, Blacktone Audio Inc.
	@since 2012-11-06
	
	
	USE	- listen for:

zjhiphop

Download and install p4merge

• Download the perforce visual tool suite from here: http://www.perforce.com/perforce/downloads/index.html
• Copy only the p4merge.app file into your /Applications/ directory

Setup p4merge as a visual mergetool

zjhiphop

#!/bin/bash
# Issue arbitary git command for each of the sub modules.
# E.g. git-bundle checkout feature/docs
# Check out the feature/docs branch for each of the sub module.
 
function print_header
{
  printf '%.0s-' {1..30} && echo
	echo $1
	printf '%.0s-' {1..30} && echo

zjhiphop

var BaseObject = {
    create: function create() {
       var instance = Object.create(this);
       instance._construct.apply(instance, arguments);
       return instance;
    },

    extend: function extend(properties, propertyDescriptors) {
        propertyDescriptors = propertyDescriptors || {};

zjhiphop

#!/bin/bash

function actual_path() {
  if [ [ -z "$1" ] -a [ -d $1 ] ]; then
    echo $(cd $1 && test `pwd` = `pwd -P`)
    return 0
  else
    return 1
  fi
}

zjhiphop

百度：Tangram

基本上就是个百度版jQuery，2.0版本使用链式API，更像了。
配套的还有UI库Magic和模版引擎BaiduTemplate（和ejs很像）

腾讯：JX

理念在介绍里面写的很详细，代码清晰，注释丰富，可读性很好，但只有文档没有实例。
比较传统的大块头框架，本质上来说还是一堆工具方法和对象的堆积，提供了很基本的模块化的开发方式，但没有模块间的依赖关系支持。

zjhiphop

            DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
                    Version 2, December 2004

 Copyright (C) 2011 YOUR_NAME_HERE <YOUR_URL_HERE>

 Everyone is permitted to copy and distribute verbatim or modified
 copies of this license document, and changing it is allowed as long
 as the name is changed.

            DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE