timhwang21

import React from "react";
import { isEqual } from "underscore";

/**
 * HOC for diagnosing unnecessary renders and identifying faulty selectors
 *
 * Adds a logger function to a component that lists all changed props
 * Also checks if changed props are deeply equal
 *
 * Usage: Decorate the component you are investigating with renderDoctor:

timhwang21

#!/usr/bin/env bash

brew install cabextract
cd ~/Downloads
mkdir consolas
cd consolas
curl -O http://download.microsoft.com/download/f/5/a/f5a3df76-d856-4a61-a6bd-722f52a5be26/PowerPointViewer.exe
cabextract PowerPointViewer.exe
cabextract ppviewer.cab
open CONSOLA*.TTF

timhwang21

Handling conditional field visibility in dynamic forms

This post explores several common ways of handling visibility of conditional fields. Our sample form will have the following schema:

• foo: always present
• bar: dependent on form state (value of foo)
• baz: dependent on other application state (e.g. user permissions)

Below is our form, prior to implementing visibility logic:

timhwang21

Making Tickets Actionable

Tim Hwang

---

Roles in Product Development

• PM identifies 🔎 user requirements
• UX designs 🎨 them

timhwang21

{-# LANGUAGE DuplicateRecordFields #-}

module FormValidations where

import Data.Either
import Data.Maybe
import Text.Read

main :: IO ()
main = return ()

timhwang21

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timhwang21

curryRecord

This is an example of a function whose logic lives in the type definition rather than in the function body.

/**
 * @name `curryRecord`
 *
 * Takes a unary function that takes a record as an argument, and makes the
 * record partially applicable. Returns a new function that takes a partial of

timhwang21

DD/MM/YYYY

Questions to direct report

Tasks

What tasks have you accomplished in the first half of the week?

What tasks do you plan on working on in the second half of the week?

timhwang21

const I = x => x;
const K = x => y => x;
const A = f => x => f(x);
const T = x => f => f(x);
const W = f => x => f(x)(x);
const C = f => y => x => f(x)(y);
const B = f => g => x => f(g(x));
const S = f => g => x => f(x)(g(x));
const P = f => g => x => y => f(g(x))(g(y));
const Y = f => (g => g(g))(g => f(x => g(g)(x)));

timhwang21

SELECT 
  t.TABLE_SCHEMA, 
  t.TABLE_NAME, 
  c.COLUMN_NAME, 
  IFNULL(
    kcu.CONSTRAINT_NAME, 'Not indexed'
  ) AS `Index` 
FROM 
  information_schema.TABLES t 
  INNER JOIN information_schema.`COLUMNS` c ON c.TABLE_SCHEMA = t.TABLE_SCHEMA