joshdover

import { Modifier, EditorState, RichUtils } from 'draft-js';
import getCurrentlySelectedBlock from './getCurrentlySelectedBlock';

export const ALIGNMENTS = {
	CENTER:  'center',
	JUSTIFY: 'justify',
	LEFT:    'left',
	RIGHT:   'right'
};

joshdover

Install python-flamegraph into your project:

pip install git+https://github.com/evanhempel/python-flamegraph.git

Record a profile around a bit of code:

import flamegraph
thread = flamegraph.start_profile_thread(fd=open("./profile.log", "w"))

joshdover

Idiomatic React Testing Patterns

Testing React components seems simple at first. Then you need to test something that isn't a pure interaction and things seem to break down. These 4 patterns should help you write readable, flexible tests for the type of component you are testing.

Setup

I recommend doing all setup in the most functional way possible. If you can avoid it, don't set variables in a beforeEach. This will help ensure tests are isolated and make things a bit easier to reason about. I use a pattern that gives great defaults for each test example but allows every example to override props when needed: