Thyago Barbosa thyagobr

Neovim keybinds

Capital letters do the opposite of small letters in command (Press shift to trigger capital letters)
_ (underscore) to move the cursor at the beginning of line (doesn't switch to insert mode)
- 0 (zero) moves the cursor to the zeroth position of the line (doesn't switch to insert mode)
$ (dollar) to move the cursor at the end of line (doesn't switch to insert mode)
d$ will delete from wherever your cursor is till the end of the line
f<character> to move cursor to the first occurrence of <character>
- f( to move cursor to first occurence of (
t<character> to move cursor to upto but not on the first occurrence of <character>
t( to move cursor to first occurence of (

Installing mysql2 gem errors on MacOS Mojave.

Make sure openssl is installed on Mac via Homebrew.

# Creating a lambda
l = lambda { |name| "Hi #{name}!" }

# Executing the lambda
l.call("foo") # => Hi foo!

People

	http://stackoverflow.com/questions/22667401/postgres-json-data-type-rails-query
	http://stackoverflow.com/questions/40702813/query-on-postgres-json-array-field-in-rails

	#payload: [{"kind"=>"person"}]
	Segment.where("payload @> ?", [{kind: "person"}].to_json)

	#data: {"interest"=>["music", "movies", "programming"]}
	Segment.where("data @> ?", {"interest": ["music", "movies", "programming"]}.to_json)
	Segment.where("data #>> '{interest, 1}' = 'movies' ")
	Segment.where("jsonb_array_length(data->'interest') > 1")

	// LoadingScreenManager
	// --------------------------------
	// built by Martin Nerurkar (http://www.martin.nerurkar.de)
	// for Nowhere Prophet (http://www.noprophet.com)
	//
	// Licensed under GNU General Public License v3.0
	// http://www.gnu.org/licenses/gpl-3.0.txt

	using UnityEngine;
	using UnityEngine.UI;

	(function() {
	// Do not use this library. This is just a fun example to prove a
	// point.

	var Bloop = window.Bloop = {};

	var mountId = 0;
	function newMountId() {
	return mountId++;
	}

	$: (Dollar Colon) is basically a shorthand version of $LOAD_PATH. $: contains an array of paths that your script will search through when using require.
	$0 (Dollar Zero) contains the name of the ruby program being run. This is typically the script name.
	$* (Dollar Splat) is basically shorthand for ARGV. $* contains the command line arguments that were passed to the script.
	$? (Dollar Question Mark) returns the exit status of the last child process to finish.
	$$ (Dollar Dollar) returns the process number of the program currently being ran.
	$~ (Dollar Tilde) contains the MatchData from the previous successful pattern match.
	$1, $2, $3, $4 etc represent the content of the previous successful pattern match.
	$& (Dollar Ampersand) contains the matched string from the previous successful pattern match.
	$+ (Dollar Plus) contains the last match from the previous successful pattern match.
	$` (Dollar Backtick) contains the string before the actual matched string of the previous successful pattern match.

	#!/usr/bin/env python2

	# Quick and dirty demonstration of CVE-2014-0160 by Jared Stafford (jspenguin@jspenguin.org)
	# The author disclaims copyright to this source code.

	import sys
	import struct
	import socket
	import time
	import select

	M[16],X=16,W,k;main(){T(system("stty cbreak")
	);puts(W&1?"WIN":"LOSE");}K[]={2,3,1};s(f,d,i
	,j,l,P){for(i=4;i--;)for(j=k=l=0;k<4;)j<4?P=M
	[w(d,i,j++)],W\|=P>>11,l*P&&(f?M[w(d,i,k)]=l<<
	(l==P):0,k++),l=l?P?l-P?P:0:l:P:(f?M[w(d,i,k)
	]=l:0,++k,W\|=2*!l,l=0);}w(d,i,j){return d?w(d
	-1,j,3-i):4*i+j;}T(i){for(i=X+rand()%X;M[i%X]
	*i;i--);i?M[i%X]=2<<rand()%2:0;for(W=i=0;i<4;
	)s(0,i++);for(i=X,puts("\e[2J\e[H");i--;i%4\|\|
	puts(""))printf(M[i]?"%4d\|":" \|",M[i]);W-2