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@BTMPL
BTMPL / forgetme.js
Created December 22, 2016 14:46
class Parent extends React.Component {
constructor(...args) {
super(args);
this.state = {
renderChild: true
}
this.interval = null;
}
@ljharb
ljharb / array_iteration_thoughts.md
Last active April 22, 2024 10:15
Array iteration methods summarized

Array Iteration

https://gist.github.com/ljharb/58faf1cfcb4e6808f74aae4ef7944cff

While attempting to explain JavaScript's reduce method on arrays, conceptually, I came up with the following - hopefully it's helpful; happy to tweak it if anyone has suggestions.

Intro

JavaScript Arrays have lots of built in methods on their prototype. Some of them mutate - ie, they change the underlying array in-place. Luckily, most of them do not - they instead return an entirely distinct array. Since arrays are conceptually a contiguous list of items, it helps code clarity and maintainability a lot to be able to operate on them in a "functional" way. (I'll also insist on referring to an array as a "list" - although in some languages, List is a native data type, in JS and this post, I'm referring to the concept. Everywhere I use the word "list" you can assume I'm talking about a JS Array) This means, to perform a single operation on the list as a whole ("atomically"), and to return a new list - thus making it mu

@marktron
marktron / blacklist
Last active September 29, 2017 23:04
The blacklist I use for https://github.com/StevenBlack/hosts
# Clickbait news sources
0.0.0.0 cnn.com
0.0.0.0 nypost.com
0.0.0.0 www.dailykos.com
0.0.0.0 www.dailymail.co.uk
0.0.0.0 www.drudgereport.com
0.0.0.0 www.foxnews.com
0.0.0.0 www.huffingtonpost.com
0.0.0.0 www.mirror.co.uk
@ChrisWellsWood
ChrisWellsWood / empty_rust_structs.md
Last active November 8, 2023 10:05
Initialising empty structs in Rust.

Initialising Empty Structs in Rust

In C/C++, you can initialise a struct without giving values for any of the fields:

struct Point {
  float x;
  float y;
  float z;
};
@apolloclark
apolloclark / postgres cheatsheet.md
Last active March 7, 2024 13:53
postgres cheatsheet

Postgres Cheatsheet

This is a collection of the most common commands I run while administering Postgres databases. The variables shown between the open and closed tags, "<" and ">", should be replaced with a name you choose. Postgres has multiple shortcut functions, starting with a forward slash, "". Any SQL command that is not a shortcut, must end with a semicolon, ";". You can use the keyboard UP and DOWN keys to scroll the history of previous commands you've run.

Setup

installation, Ubuntu

http://www.postgresql.org/download/linux/ubuntu/ https://help.ubuntu.com/community/PostgreSQL

@PurpleBooth
PurpleBooth / README-Template.md
Last active April 26, 2024 11:27
A template to make good README.md

Project Title

One Paragraph of project description goes here

Getting Started

These instructions will get you a copy of the project up and running on your local machine for development and testing purposes. See deployment for notes on how to deploy the project on a live system.

Prerequisites

@jirutka
jirutka / pg_change_db_owner.sh
Last active February 6, 2024 20:01
Some convenient scripts to manage ownerships and privileges in PostgreSQL.
#!/bin/sh
#
# The MIT License
#
# Copyright 2014-2017 Jakub Jirutka <jakub@jirutka.cz>.
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
@LeCoupa
LeCoupa / nodejs-cheatsheet.js
Last active April 19, 2024 01:50
Complete Node.js CheatSheet --> UPDATED VERSION --> https://github.com/LeCoupa/awesome-cheatsheets
/* *******************************************************************************************
* THE UPDATED VERSION IS AVAILABLE AT
* https://github.com/LeCoupa/awesome-cheatsheets
* ******************************************************************************************* */
// 0. Synopsis.
// http://nodejs.org/api/synopsis.html
@Kartones
Kartones / postgres-cheatsheet.md
Last active April 25, 2024 16:50
PostgreSQL command line cheatsheet

PSQL

Magic words:

psql -U postgres

Some interesting flags (to see all, use -h or --help depending on your psql version):

  • -E: will describe the underlaying queries of the \ commands (cool for learning!)
  • -l: psql will list all databases and then exit (useful if the user you connect with doesn't has a default database, like at AWS RDS)
@gruber
gruber / Liberal Regex Pattern for Web URLs
Last active April 22, 2024 19:02
Liberal, Accurate Regex Pattern for Matching Web URLs
The regex patterns in this gist are intended only to match web URLs -- http,
https, and naked domains like "example.com". For a pattern that attempts to
match all URLs, regardless of protocol, see: https://gist.github.com/gruber/249502
# Single-line version:
(?i)\b((?:https?:(?:/{1,3}|[a-z0-9%])|[a-z0-9.\-]+[.](?:com|net|org|edu|gov|mil|aero|asia|biz|cat|coop|info|int|jobs|mobi|museum|name|post|pro|tel|travel|xxx|ac|ad|ae|af|ag|ai|al|am|an|ao|aq|ar|as|at|au|aw|ax|az|ba|bb|bd|be|bf|bg|bh|bi|bj|bm|bn|bo|br|bs|bt|bv|bw|by|bz|ca|cc|cd|cf|cg|ch|ci|ck|cl|cm|cn|co|cr|cs|cu|cv|cx|cy|cz|dd|de|dj|dk|dm|do|dz|ec|ee|eg|eh|er|es|et|eu|fi|fj|fk|fm|fo|fr|ga|gb|gd|ge|gf|gg|gh|gi|gl|gm|gn|gp|gq|gr|gs|gt|gu|gw|gy|hk|hm|hn|hr|ht|hu|id|ie|il|im|in|io|iq|ir|is|it|je|jm|jo|jp|ke|kg|kh|ki|km|kn|kp|kr|kw|ky|kz|la|lb|lc|li|lk|lr|ls|lt|lu|lv|ly|ma|mc|md|me|mg|mh|mk|ml|mm|mn|mo|mp|mq|mr|ms|mt|mu|mv|mw|mx|my|mz|na|nc|ne|nf|ng|ni|nl|no|np|nr|nu|nz|om|pa|pe|pf|pg|ph|pk|pl|pm|pn|pr|ps|pt|pw|py|qa|re|ro|rs|ru|rw|sa|sb|sc|sd|se|sg|sh|si|s