Chad Luo chadluo

常用的 HTML 头部标签

详细介绍参见原文：yisibl/blog#1

<!DOCTYPE html> <!-- 使用 HTML5 doctype，不区分大小写 -->
<html lang="zh-cmn-Hans"> <!-- 更加标准的 lang 属性写法 http://zhi.hu/XyIa -->
<head>
    <meta charset='utf-8'> <!-- 声明文档使用的字符编码 -->
    <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1" /> <!-- 优先使用 IE 最新版本和 Chrome -->

New Mac

###Browsers

Chrome
- GoogleChrome
- DirectLink
Firefox

###Editors && IDE

Emacs4Mac Latest Build

This is material to go along with a 2014 Boston Haskell talk.

We are going to look at a series of type signatures in Haskell and explore how parametricity (or lack thereof) lets us constrain what a function is allowed to do.

Let's start with a decidedly non-generic function signature. What are the possible implementations of this function which typecheck?

wrangle :: Int -> Int

This blog post series has moved here.

You might also be interested in the 2016 version.

A Quick and Dirty Lens primer

Why does Lens exist? Well, Haskell records suck, for a number of reasons. I will enumerate them using this sample record.

data User = User { login    :: Text
                 , password :: ByteString
                 , email    :: Text
                 , created  :: UTCTime
 }

ES6 Grammar

Generated using http://github.com/rbuckton/grammarkdown

SourceCharacter ::
any Unicode code point

InputElementDiv ::
WhiteSpace
LineTerminator
Comment

	"===[ Settings ]========================================================

	" Autocomplete using Firefox Awesomebar subsystem
	set complete=l

	" Show completions as you type? '' waits for tab, 'auto' shows them immediately
	set wildoptions=''

	" Select the longest autocomplete match
	set wildmode='list:full'

	(use '[clojure.core.match :only [match]])

	(defn evaluate [env [sym x y]]
	(match [sym]
	['Number] x
	['Add] (+ (evaluate env x) (evaluate env y))
	['Multiply] (* (evaluate env x) (evaluate env y))
	['Variable] (env x)))

	(def environment {"a" 3, "b" 4, "c" 5})

	class Graph:
	def __init__(self):
	self.nodes = set()
	self.edges = defaultdict(list)
	self.distances = {}

	def add_node(self, value):
	self.nodes.add(value)

	def add_edge(self, from_node, to_node, distance):

	{
	"name": "my-app",
	"version": "1.0.0",
	"description": "My test app",
	"main": "src/js/index.js",
	"scripts": {
	"jshint:dist": "jshint src/js/*.js",
	"jshint": "npm run jshint:dist",
	"jscs": "jscs src/*.js",
	"browserify": "browserify -s Validating -o ./dist/js/build.js ./lib/index.js",