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@bvaughn
bvaughn / index.md
Last active Jun 16, 2019
How to use profiling in production mode for react-dom
View index.md
@miyaokamarina
miyaokamarina / conditions.js
Last active Apr 23, 2019
Type-level conditions in Flow https://is.gd/OPsJBd
View conditions.js
// Licensed under CC BY 4.0.
type $If<X: boolean, Then, Else = empty> = $Call<
& ((true, Then, Else) => Then)
& ((false, Then, Else) => Else),
X,
Then,
Else,
>;
@sibelius
sibelius / MutationUtils.js
Created Mar 19, 2018
Helper methods for Relay Modern updater
View MutationUtils.js
// @flow
import { ConnectionHandler } from 'relay-runtime';
import { isObject, isArray } from 'lodash/fp';
export function listRecordRemoveUpdater({ parentId, itemId, parentFieldName, store }) {
const parentProxy = store.get(parentId);
const items = parentProxy.getLinkedRecords(parentFieldName);
parentProxy.setLinkedRecords(items.filter(record => record._dataID !== itemId), parentFieldName);
}
@klaaspieter
klaaspieter / ASS.md
Created Jun 22, 2017 — forked from anonymous/ASS.md
Acronyms Seriously Suck - Elon Musk
View ASS.md

From time to time, Musk will send out an e-mail to the entire company to enforce a new policy or let them know about something that's bothering him. One of the more famous e-mails arrived in May 2010 with the subject line: Acronyms Seriously Suck:

There is a creeping tendency to use made up acronyms at SpaceX. Excessive use of made up acronyms is a significant impediment to communication and keeping communication good as we grow is incredibly important. Individually, a few acronyms here and there may not seem so bad, but if a thousand people are making these up, over time the result will be a huge glossary that we have to issue to new employees. No one can actually remember all these acronyms and people don't want to seem dumb in a meeting, so they just sit there in ignorance. This is particularly tough on new employees.

That needs to stop immediately or I will take drastic action - I have given enough warning over the years. Unless an acronym is approved by me, it should not enter the SpaceX glossary.

@gaearon
gaearon / slim-redux.js
Last active Jun 13, 2019
Redux without the sanity checks in a single file. Don't use this, use normal Redux. :-)
View slim-redux.js
function mapValues(obj, fn) {
return Object.keys(obj).reduce((result, key) => {
result[key] = fn(obj[key], key);
return result;
}, {});
}
function pick(obj, fn) {
return Object.keys(obj).reduce((result, key) => {
if (fn(obj[key])) {
View Makefile
# Hello, and welcome to makefile basics.
#
# You will learn why `make` is so great, and why, despite its "weird" syntax,
# it is actually a highly expressive, efficient, and powerful way to build
# programs.
#
# Once you're done here, go to
# http://www.gnu.org/software/make/manual/make.html
# to learn SOOOO much more.
@rxaviers
rxaviers / gist:7360908
Last active Jun 19, 2019
Complete list of github markdown emoji markup
View gist:7360908

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