MohamedAlaa

tmux shortcuts & cheatsheet

start new:

tmux

start new with session name:

tmux new -s myname

mahata

;; (let [md (. java.security.MessageDigest getInstance "sha-512")]
;;   (. md update (.getBytes "helloworld"))
;;   (let [bytes (. md digest)]
;;     (reduce (fn [n x] (str n (format "%02x" x))) "" bytes)))

;; (let [md (. java.security.MessageDigest getInstance "sha-512")]
;;   (. md update (.getBytes "helloworld"))
;;   (let [bytes (. md digest)]
;;     (reduce #(str %1 (format "%02x" %2)) "" bytes)))

kareman

//
//  Queue.swift
//  NTBSwift
//
//  Created by Kåre Morstøl on 11/07/14.
//
//  Using the "Two-Lock Concurrent Queue Algorithm" from http://www.cs.rochester.edu/research/synchronization/pseudocode/queues.html#tlq, without the locks.


// should be an inner class of Queue, but inner classes and generics crash the compiler, SourceKit (repeatedly) and occasionally XCode. 

oakes

Contents

• Why care about Rust?
• The Toolchain
• Creating a New Project
• Modules
• Crates
• Types
• References
• Mutability

manytomany.db

# For http://stackoverflow.com/a/7296873/396458

student: student_id, first_name, last_name
classes: class_id, name, teacher_id
student_classes: class_id, student_id     # the junction table

students:
id | first  | last
=====================
1  | John   | Lee

vasanthk

System Design Cheatsheet

Picking the right architecture = Picking the right battles + Managing trade-offs

Basic Steps

1. Clarify and agree on the scope of the system

• User cases (description of sequences of events that, taken together, lead to a system doing something useful)
  • Who is going to use it?
  • How are they going to use it?

zehnpaard

(ns simple-compojure.core
  (require
    [ring.adapter.jetty :refer [run-jetty]]
    [ring.middleware.params :as p]
    [simple-compojure.middleware :as m]
    [simple-compojure.routes :as r]
  ))

(def app
  (-> r/routes

zehnpaard

(ns simple-hiccup.core
  (require
    [ring.adapter.jetty :refer [run-jetty]]
    [simple-hiccup.middleware :as m]
    [simple-hiccup.routes :as r]
  ))

(def app
  (-> r/routes
      m/logger

lazywithclass

Looking at the most beautiful program ever written - part 1

I am going to have a look at what William Byrd presented as The most beautiful program ever written.

Beauty here refers to computer programs, specifically about Lisp. There might be errors as this is something I wrote to make sense of that interpreter, proceed at your own risk.

Thanks a lot to Carl J. Factora for the help.

The program

longsangstan

import React from "react";


/*
	Read a text file and out put the content.
	
	Example Usage:

	var myTxt = require("./myTxt.txt");
	...