jcouyang

Keybase proof

I hereby claim:

• I am jcouyang on github.
• I am oyanglulu (https://keybase.io/oyanglulu) on keybase.
• I have a public key ASDd7C_jnHrfyZ-hv7yEPxWFSwbOCfYOX_oqoujJ55JeXwo

To claim this, I am signing this object:

jcouyang

<keymap version="1" name="Emacs copy" parent="macOS For All">
  <action id="$Copy">
    <keyboard-shortcut first-keystroke="alt c" />
  </action>
  <action id="$Cut">
    <keyboard-shortcut first-keystroke="shift delete" />
  </action>
  <action id="$Delete">
    <keyboard-shortcut first-keystroke="delete" />
    <keyboard-shortcut first-keystroke="ctrl d" />

jcouyang

require "httparty"
require 'json'
url = "https://hypothes.is/api/search?wildcard_uri=https://blog.oyanglul.us/*&sort=created"

HEADER = <<-EOXML
<?xml version="1.0"?>
<rss version="2.0"
     xmlns:atom="http://www.w3.org/2005/Atom"
     xmlns:dc="http://purl.org/dc/elements/1.1/">
  <channel>

jcouyang

settings.startToShowEmoji = 3;
settings.tabsMRUOrder = false;
settings.tabsThreshold = 4;

api.mapkey(';oc', 'Org Capture', function() {
  location.href='org-protocol://capture?' + 
    new URLSearchParams({
        template: 'x',
        url: window.location.href,
        title: document.title,

jcouyang

// Higher Kind Type dictionary
interface _<A> { }

type HKT = keyof _<any>

type $<F extends HKT, A> = _<A>[F]

// Functor Type Class
interface Functor<F extends HKT> {
  map<A, B>(f: (a: A) => B, fa: $<F, A>): $<F, B>

jcouyang

height = params['height'].to_f
weight = params['weight'].to_f
bmi = weight * 10000.0 / (height * height)
health = if(bmi < 18.5)
        'underweight'
    elsif (bmi < 24.9) 
        'normal'
    elsif (bmi < 30) 
        'Overweight'
    elsif (bmi >= 30)

jcouyang

#!/bin/sh
### BEGIN INIT INFO
# Provides: syncthing
# Required-Start: $local_fs $remote_fs
# Required-Stop: $local_fs $remote_fs
# Should-Start: $network
# Should-Stop: $network
# Default-Start: 2 3 4 5
# Default-Stop: 0 1 6
# Short-Description: Multi-user daemonized version of syncthing.

jcouyang

#!/bin/sh
### BEGIN INIT INFO
# Provides:          ipfs daemon
# Required-Start:    $local_fs $remote_fs $network $syslog $named
# Required-Stop:     $local_fs $remote_fs $network $syslog $named
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Short-Description: Starts the ipfs daemon
# Description:       Starts the ipfs daemon using the start-stop-daemon
### END INIT INFO

jcouyang

The Promise All Problem

in case of processing a very large array e.g. Promise.all(A_VERY_LARGE_ARRAY_OF_XHR_PROMISE)

which would probably blow you browser memory by trying to send all requests at the same time

solution is limit the concurrent of requests, and wrap promise in thunk

Promise.allConcurrent(2)([()=>fetch('BLAH1'), ()=>fetch('BLAH2'),...()=>fetch('BLAHN')])

jcouyang

import Control.Monad
import Data.List
solution n =
    undefined
    
readInt :: IO Int
readInt = readLn

getInputs :: Int -> IO [Int]
getInputs lines = replicateM lines readInt