Joshua Gross JoshuaGross

Hi Nicholas,

I saw you tweet about JSX yesterday. It seemed like the discussion devolved pretty quickly but I wanted to share our experience over the last year. I understand your concerns. I've made similar remarks about JSX. When we started using it Planning Center, I led the charge to write React without it. I don't imagine I'd have much to say that you haven't considered but, if it's helpful, here's a pattern that changed my opinion:

The idea that "React is the V in MVC" is disingenuous. It's a good pitch but, for many of us, it feels like in invitation to repeat our history of coupled views. In practice, React is the V and the C. Dan Abramov describes the division as Smart and Dumb Components. At our office, we call them stateless and container components (view-controllers if we're Flux). The idea is pretty simple: components can't

What forces layout / reflow

All of the below properties or methods, when requested/called in JavaScript, will trigger the browser to synchronously calculate the style and layout*. This is also called reflow or layout thrashing, and is common performance bottleneck.

Generally, all APIs that synchronously provide layout metrics will trigger forced reflow / layout. Read on for additional cases and details.

Element APIs

Getting box metrics

elem.offsetLeft, elem.offsetTop, elem.offsetWidth, elem.offsetHeight, elem.offsetParent

These links no longer work. Springer have pulled the free plug.

Graduate texts in mathematics

duplicates = multiple editions

A Classical Introduction to Modern Number Theory, Kenneth Ireland Michael Rosen

	import cv2
	import math
	import numpy as np
	import sys

	def apply_mask(matrix, mask, fill_value):
	masked = np.ma.array(matrix, mask=mask, fill_value=fill_value)
	return masked.filled()

	def apply_threshold(matrix, low_value, high_value):

	#!/bin/bash

	function test {
	MESSAGE=$1
	RECEIVED=$2
	EXPECTED=$3

	if [ "$RECEIVED" = "$EXPECTED" ]; then
	echo -e "\033[32m✔︎ Tested $MESSAGE"
	else

	"""
	Utility function relabel_superpixels_to_bodies(), along with a main() function providing a command-line interface.
	See usage documentation in main(), below.
	"""
	from __future__ import print_function
	import collections
	import numpy as np
	import vigra

	def main():

	var uniqueArray = function(arrArg) {
	return arrArg.filter(function(elem, pos,arr) {
	return arr.indexOf(elem) == pos;
	});
	};

	var uniqEs6 = (arrArg) => {
	return arrArg.filter((elem, pos, arr) => {
	return arr.indexOf(elem) == pos;
	});

	var Col = require('react-bootstrap/lib/Col')
	var PageHeader = require('react-bootstrap/lib/PageHeader')
	var React = require('react')
	var Row = require('react-bootstrap/lib/Row')
	var {connect} = require('react-redux')
	var {reduxForm} = require('redux-form')

	var DateInput = require('./DateInput')
	var FormField = require('./FormField')
	var LoadingButton = require('./LoadingButton')

	// Compiles with gcc -O0 single_diff_libswiftnav.c

	#include <stdint.h>
	#include <stdbool.h>
	#include <string.h>
	#include <stdio.h>
	#include <inttypes.h>

	typedef uint8_t u8;
	typedef uint16_t u16;

	# Install:
	npm install -g sort-json

	# Put this in your ~/.profile, and then:
	# cat something.json \| normalize_json
	alias normalize_json="node -e 'var s = \"\"; process.stdin.on(\"data\", function (d) { s += d.toString(); }); process.stdin.resume(); process.on(\"exit\", function() { console.log(JSON.stringify(require(\"sort-json\")(JSON.parse(s)), null, 2)); });'"