iboss-ptk

fmap (+1) [1,2,3,4]
-- [2,3,4,5]

iboss-ptk

Number.prototype.times = function (fn) {
  const n = this.valueOf()
  const range = [...Array(n).keys()].map(n => n + 1)
  for (const i of range) {
    fn(i)
  }
}

// notice the () around number. without () it will be a syntax error
(10).times(console.log)

iboss-ptk

buildAction = perform => query => new Promise((resolve, reject) => {
  const elem = document.querySelector(query)
  let count = 0

  const checkExist = setInterval(() => {
    if(count >= 1000) {
      return reject('timeout')
    }

    if(elem) {

iboss-ptk

;; if using keyword (:whatever) as key 
;; -- { :amphoe "x" :tambol "y" }
;; then this is enough

(defn sort-data [keys data]
  (sort-by (apply juxt keys) data))

iboss-ptk

const [lessThan, equal, greaterThan] = [-1, 0, 1]

const compareString = (s1, s2) => {
  if (s1 === s2) { return equal }
  if (s1 < s2)   { return lessThan }
  if (s1 > s2)   { return greaterThan }
}

const compareObjectBy = ([head, ...tail]) => (o1, o2) => {
  const compareStringResult = compareString(o1[head], o2[head])

iboss-ptk

" Dark powered mode of SpaceVim, generated by SpaceVim automatically.
let g:spacevim_enable_debug = 1
let g:spacevim_realtime_leader_guide = 1
call SpaceVim#layers#load('incsearch')
call SpaceVim#layers#load('lang#c')
call SpaceVim#layers#load('lang#elixir')
call SpaceVim#layers#load('lang#go')
call SpaceVim#layers#load('lang#haskell')
call SpaceVim#layers#load('lang#java')
call SpaceVim#layers#load('lang#javascript')

iboss-ptk

# remap prefix to Control + f 
set -g prefix C-f
unbind C-b
bind C-a send-prefix

# set vi key binding
set-window-option -g mode-keys vi
bind-key -T copy-mode-vi 'v' send -X begin-selection
bind-key -T copy-mode-vi 'y' send -X copy-selection-and-cancel

iboss-ptk

const roundNum = (i, j) => Math.max(Math.abs(i), Math.abs(j))

const sumRange = n => (n * (n + 1)) / 2
const accumulateBy = f => n => f(sumRange(n))

const roundCircumference = n => 8 * n
const accumulateDistanceUpToRound = accumulateBy(roundCircumference)

const distanceOnOuterRound = (i, j) => {
  const n = roundNum(i, j)

iboss-ptk

// OthelloBot

def nextMoveByMinEdge(board: Board): Move = {
  val possibleMovesWithWeight =
    board
      .possibleMoves
      .map { move => 
        val weight = /* calc weight for min edge */
        (move, weight)
      }

iboss-ptk

Learn C

1. IO
2. Math
3. If/else
4. Recursive
5. Switch case
6. Loop
7. Pointer