orta

ClickerMonkey

// when T is any|unknown, Y is returned, otherwise N
type IsAnyUnknown<T, Y, N> = unknown extends T ? Y : N;
  
// when T is never, Y is returned, otherwise N
type IsNever<T, Y = true, N = false> = [T] extends [never] ? Y : N;

// when T is a tuple, Y is returned, otherwise N
// valid tuples = [string], [string, boolean], 
// invalid tuples = [], string[], (string | number)[]

josemarimanio

Installing pyenv on macOS for Zsh using Homebrew

Published May-13-2020

• Installation
• Basic Usage
• Virtualenv

kaicataldo

import React from 'react';

export const onRenderBody = function({ setPreBodyComponents }) {
  // Load dark mode script in head to prevent FOUC.
  setPreBodyComponents([
    <script
      type="text/javascript"
      key="theme-initializer"
      src="/set-dark-mode.js"
    />,

ai

Онбординг фронтендера на Амплифере

Дать доступ. Менеджер и Макс даёт доступ. Фронтовый тимлид пинает их, уточняет у нового фронтендера дали ли ему все доступы, пинаем ещё раз, если надо.

1. Выдать почту на @amplifr.com
2. Доступ в Slack
3. Доступ в Trello
4. Доступ в GitHub
5. Доступ в Zeplin
6. Доступ в Sentry

chicoxyzzy

Russian WebAssembly Community

• telegram chat
• WebAssembly FAQ

Become a speaker

Please contact Sergey Rubanov (telegram, twitter), Mikhail Voronov (telegram) or Alexey Frolov (telegram)

swalkinshaw

Moved to Shopify/graphql-design-tutorial

gaearon

Note:

When this guide is more complete, the plan is to move it into Prepack documentation.
For now I put it out as a gist to gather initial feedback.

A Gentle Introduction to Prepack (Part 1)

If you're building JavaScript apps, you might already be familiar with some tools that compile JavaScript code to equivalent JavaScript code:

• Babel lets you use newer JavaScript language features, and outputs equivalent code that targets older JavaScript engines.

rauschma

Strings

String.prototype.*

None of the string methods modify this – they always return fresh strings.

• charAt(pos: number): string ^ES1

  Returns the character at index pos, as a string (JavaScript does not have a datatype for characters). str[i] is equivalent to str.charAt(i) and more concise (caveat: may not work on old engines).

OliverJAsh

/*

In JavaScript, objects can be used to serve various purposes.

To maximise our usage of the type system, we should assign different types to our objects depending
on the desired purpose.

In this blog post I will clarify two common purposes for objects known as records and dictionaries
(aka maps), and how they can both be used with regards to the type system.