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alvinsj /
Last active Dec 4, 2017
Review of the videos from Advanced React (Free version)

  1. Imperative vs. Declarative, "extending" React
    Making use of react lifecycle to make declarative API (from imperative lib). non-dom, nothing-to-render component. e.g. <Sound />, <Tone />, <D3 />

    • nice: declarative > imperative.
    • maybe? component tree with non-DOM component. e.g. sound(LifeCycleComponent, {isPlaying, pitch, frequency})
  2. Implicit State with Compound Components and cloneElement
    Making use of to inject props to children,

View FormWithLayoutDemo.js
import React from 'react';
import FormWithLayout from 'react-form-with-layout';
import {formInputsSerialize} from 'form-input-serialize';
const Form = (props) => {
const layout = (builder) => {
const {layout, section} = builder;
const col = (type, ...children) => builder.col(`col-${type}`, ...children);
return layout(

Keybase proof

I hereby claim:

  • I am alvinsj on github.
  • I am alvinsj ( on keybase.
  • I have a public key whose fingerprint is B995 753B 6198 B0ED 48B6 B762 E0B0 9456 C027 0707

To claim this, I am signing this object:

View promise-then-return.js
var p1, p2, tp1;
// p1 is original promise
p1 = new Promise(function(resolve, reject){
console.log('+ resolve to hello');
}, 1000)
View MoustrapMixin.js
/** @jsx React.DOM */
// NOTE: This file is formatted for React.js + Browserify
// You might need to make some changes to use it without Browserify
var MousetrapMixin,
Mousetrap = require('br-mousetrap');
MousetrapMixin = {
alvinsj / deep-assign.weird.js
Last active Sep 4, 2015
deep-assign (with weird mode)
View deep-assign.weird.js
var deepAssignFactory = function(weirdMode){
return function deepAssign(){
var objs = Array.prototype.slice.apply(arguments);
return objs.reduce(function(exObj, curObj){
if(Object.keys(curObj).length == 0) return exObj;
// merge whatever in curObj to exObj
return mergeSecondObjectToFirst(exObj, curObj)
View sneakySwift-currying.swift
func add(x: Int) (_ y: Int) -> Int{
return x + y;
add(1)(2); // 3
View package.json
"name": "my-app",
"version": "0.0.0",
"dependencies": {
"browserify": "~2.36.1",
"less": "~1.5.1"
"devDependencies": {
"watchify": "~0.4.1",
"catw": "~0.2.0"
alvinsj / gist:6967159d05eff2c66a82
Last active Aug 29, 2015
chrome-cli reload all 'localhost:3000'
View gist:6967159d05eff2c66a82
chrome-cli list links \
| grep localhost:3000 \
| sed -E "s/\\[([0-9]+:)?(.*)\\](.*)/\\2/" \
| xargs -L1 chrome-cli reload -t
View memory.rb
#!/bin/env ruby
# lazy hack from Robert Klemme
module Memory
# sizes are guessed, I was too lazy to look
# them up and then they are also platform
# dependent
REF_SIZE = 4 # ?
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