Play Testing and Json
個人覺得Play 的文件比較亂。在這裡先記下簡約play testing 的用法 版本 !!!!十分重要, 因為各個版本的api 可以差別很大… Play version: 2.4.6 Scala version: 2.1.0 Override configuration因為
Migrate from Xanga to Hexo
Download Migration Plugin1npm install hexo-migrator-wordpress --save Download Archive from XangaI got a folder named 29018156_1, and 2901815
static binding and dynamic binding
ExampleCopied from https://www.emacswiki.org/emacs/DynamicBindingVsLexicalBinding1234(let ((a 1)) ; binding (1)
elementary s4e16 subtitle note
雕刻刀Stiletto knife. 我自己的DNA污染了樣本I contaminated the sample with my own DNA. 這種事偶爾會發生These things happen from time to time. 我們有足夠的證據讓真兇被終身監禁We
Context-Free Grammar & JSON
JSON 和Context-free Grammar的關係Copy from JSON.org object {} { members } members pair pair , members pair string : value array []
Introduction to formal language
前言在很久很久以前，數學家門研究怎樣產生電腦，和研究怎樣令電腦運作, 這門的學問叫Theory of computation (真的是theory, 因為都是抽象的電腦), 當中有兩個分支: Automata theory 研究機械怎樣計算 Formal language 研究
group by key in haskell
什麼是Group By KeyGroup By Key 就是把Element 計算一個key，相同key的element 就放左一組內例如group by key by the reminder equal to 3 in Scala 123val arr = Array(2,
parameter passing
主要分為兩種Evalulation first, or Evaluation when needed Evalulation Argunment firstCall-By-Value最common 的做法，先計算parameter 的value，然後把value copy 進fu
Scala-flatten-flatMap
GenTraversableGenTraversable 可理解為可以被loop…被transverse(look over, examine)GenTraversable: A trait for all traversable collections which may po
javascript object筆記
記錄一些javascript object用法和注意地方