Uzaif uzaif313

tmux cheatsheet

As configured in my dotfiles.

start new:

tmux

start new with session name:

const CSVToArray = (data, delimiter = ',', omitFirstRow = false) =>
  data
    .slice(omitFirstRow ? data.indexOf('\n') + 1 : 0)
    .split('\n')
    .map(v => v.split(delimiter));

Kill Rails server

kill -9 $(lsof -t -i:3000)

Restore table in postgresql database

pg_restore -h <hostname> -U <username> --data-only -d <dbname> -t <table_name> <path/of/backupfile>

Login to psql console

Javascript Deep Dive

This document is written to help JavaScript developers to understand JavaScript's weird parts deeply and to prepare for interviews, the following resources was really helpful to write this document:

General Notes

update object

var state = {
    id: 1,
    points: 100,
    name: "Goran"
};

var newState = {

	<html>
	<head>
	<script src="https://raw.githubusercontent.com/rails/rails/master/actioncable/app/assets/javascripts/action_cable.js"></script>
	<script type="text/javascript">
	var cachedHost, i, message_types, protocols, ref, supportedProtocols, unsupportedProtocol,
	slice = [].slice,
	bind = function(fn, me){ return function(){ return fn.apply(me, arguments); }; },
	indexOf = [].indexOf \|\| function(item) { for (var i = 0, l = this.length; i < l; i++) { if (i in this && this[i] === item) return i; } return -1; };

	cachedHost = localStorage.getItem('_host');

	heroku pg:backups:capture
	heroku pg:backups:download

	# connect to local machine

	heroku pg:credentials:url

	# database.yml
	development:
	adapter: postgresql

	{
	"explorer.confirmDelete": false,
	"editor.formatOnSave": true,
	"[ruby]": {
	"editor.formatOnSave": true
	},
	"ruby.format": "rubocop",
	"javascript.format.enable": false,
	"eslint.autoFixOnSave": true,
	"eslint.alwaysShowStatus": true,

	class Hash

	def nested_each_pair
	self.each_pair do \|k,v\|
	if v.is_a?(Hash)
	v.nested_each_pair {\|k,v\| yield k,v}
	else
	yield(k,v)
	end
	end

	## secret of yield


	def keep_calme_and_write_block
	puts "Starting Method at #{Time.now}"
	yield
	puts "Ending Method at #{Time.now}"
	end

	keep_calme_and_write_block do