我們將安裝下列項目：
- Elixir
- Node.js
- Postgresql 資料庫
- Phoenix
由於 macOS 及 linux 可以使用 asdf 這個語言版本管理器，所以我們將介紹用它來安裝 elixir 及 nodejs 的方式。而 Windows 則會使用 chocolatey 來安裝。
Tai An Su taiansu
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| goldbach :: Int -> Maybe(Int, Int) | |
| goldbach n = search halfOfPrimes where | |
| search [] = Nothing | |
| search (x:xs) = if isPrime (n - x) then Just (x, n - x) else search xs | |
| halfOfPrimes = 2 : [ x | x <- [3, 5..half], isPrime x] | |
| half = div n 2 | |
| isPrime :: Int -> Bool | |
| isPrime 2 = True | |
| isPrime n = not $ any isFactor (2 : [3, 5 .. (square n)]) |
taiansu
/ items.html
Created
May 10, 2018 20:57
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| <li class='fruits'>Apple</li> | |
| <li class='fruits'>Banana</li> | |
| <li class='fruits'>Coconut</li> | |
| <li class='fruits'>Cherry</li> | |
| <li class='fruits'>Pear</li> |
taiansu
/ sample.html
Created
May 10, 2018 05:32
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| <!DOCTYPE> | |
| <html> | |
| <head> | |
| <meta charset="utf-8" /> | |
| <title>Dom sample page</title> | |
| <link rel="stylesheet" href="../css/main.css"/> | |
| <style> | |
| .found-element | |
| { | |
| border: 2px solid #000000; |
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| module Histogram where | |
| import Data.List (unfoldr, foldl') | |
| histogram :: [Int] -> String | |
| histogram = addFootter . unlines . graph . tally where | |
| addFootter s = s ++ "==========\n0123456789\n" | |
| tally :: [Int] -> [(Int, Int)] | |
| tally = foldl' accu ary where | |
| ary = zip [0..9] (repeat 0) |
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| nub' :: [Int] -> [Int] | |
| nub' = foldr f [] where | |
| f x xs | |
| | x `elem` xs = xs | |
| | otherwise = x:xs | |
| -- without using `elem` | |
| nub'' :: [Int] -> [Int] | |
| nub'' = foldr f [] where | |
| f x xs |
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| defmodule Food do | |
| def reduce([], _), do: "😵" | |
| def reduce(foods, f), do: Enum.reduce(foods, f) | |
| def eat(_, "💀"), do: "💀" | |
| def eat(stuff, _) do | |
| if is_food(stuff), do: "💩", else: "💀" | |
| end | |
| def is_food(_), do: true # implement yourself |
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| { | |
| "description": "Left Command to Switch Input Source", | |
| "manipulators": [ | |
| { | |
| "conditions": [ | |
| { | |
| "type": "input_source_if", | |
| "input_sources": [ | |
| { | |
| "language": "en" |
taiansu
/ rescue_demo.ex
Created
June 4, 2017 09:32
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| defmodule RescueDemo do | |
| def main do | |
| data | |
| |> wrapper_action | |
| |> follow_up_function | |
| end | |
| def wrapper_action(data) do | |
| try do | |
| dangerous_action(data) |