DanielFGray

#!/usr/bin/env node
'use strict';

// http://www.codewars.com/kata/53db4acb1f1a7dd68700040a/train/javascript

function canReach(from, to, movements) {
  //FIXME: attempt in multiple moves
  const offset = [ Math.abs(from[0] - to[0]), Math.abs(from[1] - to[1]) ];
  const valid_offsets = [ [1, 2], [2, 1] ];
  return valid_offsets.some(o => {

DanielFGray

#!/usr/bin/env bash

# DanielFGray 2016
# https://gist.github.com/d47925487840bb445296

err() {
  local c_red="${esc}[31m"
  echo -e "${c_red}$1${c_reset}" >&2
}

DanielFGray

'use strict';

function validISBN10(isbn) {
  if(! /\d{9}[X0-9]/.test(isbn)) return false;
  return isbn.split('').reduce((p, c, i) => {
    return p + ((c == 'X') ? 10 : parseInt(c)) * ++i;
  }, 0) % 11 == 0;
}

(function (func, cases, invert) {

DanielFGray

#!/usr/bin/env node
'use strict';

const runlength = {};

runlength.decode = function(str) {
  return str.match(/\d*\w/g)
    .reduce((prev, curr) =>
      prev + (curr.length > 1
        ? curr.slice(-1) 

DanielFGray

#!/usr/bin/env bash

declare esc=$(printf '\033')
declare c_reset="${esc}[0m"
declare c_red="${esc}[31m"
declare c_green="${esc}[32m"
declare c_blue="${esc}[34m"

err() {
  echo -e "${c_red}$@${c_reset}" >&2

DanielFGray

#!/usr/bin/env node
'use strict';

const range = function(start, stop) {
    return Array.apply(null, { length: 1 + stop - start })
        .map((v, i) => start + i);
};

const collatz = function(n, len) {
    let steps = [];

DanielFGray

#!/usr/bin/env bash

declare file="$(date +%F-%s).webm"
declare window=false
declare region=false
declare duration
declare delay=0
declare verbose
declare -A dimensions

DanielFGray

#!/usr/bin/env bash

has() {
  command -v $1 &> /dev/null
}

err() {
  echo -e "\e[31m$1\e[0m" >&2
}

DanielFGray

function! PromptQuit()
	echo 'close current buffer?'
	if nr2char(getchar())=~'y'
		silent execute "normal \<esc>:Sayonara!\<cr>"
	elseif nr2char(getchar())=~'Y'
		silent execute "normal \<esc>:Sayonara\<cr>"
	endif
	silent! redraw!
endfunction
nnoremap <silent> Q <Esc>:call PromptQuit()<CR>

DanielFGray

#!/usr/bin/env bash

usage() {
	cat <<'HELP'
-s    string to search
-t    list only text files
-c    command to execute [defaults to vim]
HELP
}