KristopherGBaker

// usage:
// create a min heap
// const heap = new Heap((a, b) => a.val < b.val)
//
// create a max heap
// const heap = new Heap((a, b) => a.val > b.val)
//
// insert an item into the heap - O(lgn)
// heap.insert(item)
//

brieb

import PropTypes from 'prop-types';

type Omit<T, K> = Pick<T, Exclude<keyof T, K>>;

type Defined<T> = T extends undefined ? never : T;

/**
 * Get the type that represents the props with the defaultProps included.
 *
 * Alternatively, we could have done something like this:

mohanpedala

Table of Contents

• set -e, -u, -x, -o pipefail
• set -e
• set -x
• set -u
• set -o pipefail
• Setting IFS
• Original Reference

set -e, -u, -x, -o pipefail

njregenwether

#!/bin/bash

##########################################################################################################################
# This will update plex libraries manually from the command line.                                                        #
# This will work on centos 7 but I can't make any guarantees about other OSes or platforms.                              #
# If you're running plex on mac os x or windows, get a real OS.                                                          #
#                                                                                                                        #
# The exports below are important because if you don't have all of them set, you will get no result when you go to list  #
#  ./Plex\ Media\ Scanner --list                                                                                         # 
#        This will show you all of your libraries and their numbers.                                                     #

paulirish

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

mikaelbr

// === Arrays

var [a, b] = [1, 2];
console.log(a, b);
//=> 1 2


// Use from functions, only select from pattern
var foo = () => [1, 2, 3];

pascalpoitras

Mouse

---

enable

---

dergachev

OS X Screencast to animated GIF

This gist shows how to create a GIF screencast using only free OS X tools: QuickTime, ffmpeg, and gifsicle.

Instructions

To capture the video (filesize: 19MB), using the free "QuickTime Player" application:

andreyvit

tmux cheat sheet

(C-x means ctrl+x, M-x means alt+x)

Prefix key

The default prefix is C-b. If you (or your muscle memory) prefer C-a, you need to add this to ~/.tmux.conf:

remap prefix to Control + a

spicycode

# 0 is too far from ` ;)
set -g base-index 1

# Automatically set window title
set-window-option -g automatic-rename on
set-option -g set-titles on

#set -g default-terminal screen-256color
set -g status-keys vi
set -g history-limit 10000