attomos

# fromhex A52A2A
# fromhex "#A52A2A"
# BLUE_VIOLET=$(fromhex "#8A2BE2")
# http://unix.stackexchange.com/a/269085/67282
function fromhex() {
  hex=$1
  if [[ $hex == "#"* ]]; then
    hex=$(echo $1 | awk '{print substr($0,2)}')
  fi
  r=$(printf '0x%0.2s' "$hex")

attomos

A collapsible section containing markdown

Click to expand!

Heading

1. A numbered
2. list
   • With some
   • Sub bullets

attomos

def processor1(obj):
  """Require: text; yield firstchar"""
  obj['firstchar'] = obj.text[:1]
  return obj

def processor2(obj):
  """Require: firstchar, text2; yield concat"""
  obj['concat'] = obj.firstchar + obj.text2
  return obj

attomos

# bash commands
# lists all of your conda env
conda env list

# Create a conda env w/ python3.5
# -n sets the name for your new env. I call it neovim here
conda create -n neovim python=3.5

# add neovim for python3 to the env
# specify version you want here, 0.1.13 up to date ver atm

attomos

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

attomos

rm -rf ~/.zprezto ~/.zlogin ~/.zlogout ~/.zpreztorc ~/.zprofile ~/.zshenv ~/.zshrc

attomos

React + Typescript Cheatsheet

Setup

If you use atom... download & install the following packages:

• atom-typescript
• linter-tslint

What are Typescript type definition files? (*.d.ts)

attomos

based on https://www.reddit.com/r/vim/comments/24g8r8/italics_in_terminal_vim_and_tmux/

• Check if italic font is supported:

$ echo -e "\e[3mitalic\e[23m"

• Also check:

$ infocmp $TERM | grep sitm
 sgr0=\E(B\E[m, sitm=\E[3m, smacs=\E(0, smam=\E[?7h,

attomos

// knockout 2.2.1

ko.utils.arrayFilter                            = function (array, predicate) { /* .. */ }

ko.utils.arrayFirst                             = function (array, predicate, predicateOwner) { /* .. */ }

ko.utils.arrayForEach                           = function (array, action) { /* .. */ }

ko.utils.arrayGetDistinctValues                 = function (array) { /* .. */ }

attomos

Latency Comparison Numbers
--------------------------
L1 cache reference                           0.5 ns
Branch mispredict                            5   ns
L2 cache reference                           7   ns                      14x L1 cache
Mutex lock/unlock                           25   ns
Main memory reference                      100   ns                      20x L2 cache, 200x L1 cache
Compress 1K bytes with Zippy             3,000   ns        3 us
Send 1K bytes over 1 Gbps network       10,000   ns       10 us
Read 4K randomly from SSD*             150,000   ns      150 us          ~1GB/sec SSD