XrXr

ANSI Escape Sequences

Standard escape codes are prefixed with Escape:

• Ctrl-Key: ^[
• Octal: \033
• Unicode: \u001b
• Hexadecimal: \x1B
• Decimal: 27

XrXr

div[aria-label="Timeline: Trending now"] {
  visibility: hidden;
}

XrXr

// Borrowing 101. Easy to see that the borrows don't overlap
// because everything is explicit and has a mapping to a
// lexical range in the source.

#[derive(Debug)]
struct NotCopy;

fn main() {
    // owner (can move the value if it wants, responsible for calling destructor)
    let mut obj = NotCopy {};

XrXr

綾󠄀
天 <- without selector
㆝󠄀
角 <- without selector
角󠄀

XrXr

def foo
  -2.itself ** 2
end

def foo2
  (-2.itself) ** 2
end

def bar
  -2 ** 2

XrXr

#!/bin/env ruby
# Copyright (c) 2020 Alan Wu
# 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
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.

XrXr

#command
k         forw-line
l         back-line

XrXr

# bad: [374e7c79eaae2dd53e2038c7f5a737653ca5e214] * 2018-01-01
# good: [5659843d6e74e321c2af58e1f3f5f73514509282] * 2017-01-01
git bisect start '374e7c79eaae2dd53e2038c7f5a737653ca5e214' '5659843d6e74e321c2af58e1f3f5f73514509282'
# bad: [dc7f2cd58615afb193f46b2bec1285186f5bf5bd] Add initial test for lldb extension
git bisect bad dc7f2cd58615afb193f46b2bec1285186f5bf5bd
# good: [fe378f03f7ff18abecb8dc9e1daf957de816e39f] test/test_prime.rb: update method name in comment
git bisect good fe378f03f7ff18abecb8dc9e1daf957de816e39f
# good: [abbfc048c5890e8017360bbc845062ea1585e155] suppress warning: ambiguous first argument; put parentheses or a space even after `-' operator
git bisect good abbfc048c5890e8017360bbc845062ea1585e155
# bad: [5522d79803766d715c37a7826e079b1c05c11e59] downloader.rb: get rid of symlinks

XrXr

require 'bundler/inline'

require 'benchmark/ips'
N = 10_000

def without
  yield
end

def with_dot_call(&block)

XrXr

module Kernel
  original_puts = instance_method(:puts)
  define_method(:puts) do |*args|
    $stdout.puts("how are you doing")
    # binding.pry
    original_puts.bind(self).call(*args)
  end
end

puts "I'm doing fine thanks"