Rahul Ranjan fluffybeing

Project Name

TODO: Write a project description

Installation

TODO: Describe the installation process

Usage

#System Design Interview Cheatsheet

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

##Basic Steps

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?

Transforming Code into Beautiful, Idiomatic Python

Notes from Raymond Hettinger's talk at pycon US 2013 video, slides.

The code examples and direct quotes are all from Raymond's talk. I've reproduced them here for my own edification and the hopes that others will find them as handy as I have!

Looping over a range of numbers

for i in [0, 1, 2, 3, 4, 5]:

Types

A type is a collection of possible values. An integer can have values 0, 1, 2, 3, etc.; a boolean can have values true and false. We can imagine any type we like: for example, a HighFive type that allows the values "hi" or 5, but nothing else. It's not a string and it's not an integer; it's its own, separate type.

Statically typed languages constrain variables' types: the programming language might know, for example, that x is an Integer. In that case, the programmer isn't allowed to say x = true; that would be an invalid program. The compiler will refuse to compile it, so we can't even run it.

Xcode 6

Plug in the device and open Xcode
Choose Window -> Devices from the Xcode menu
Under the DEVICES section in the left column, choose the device
To see crash logs, select the View Device Logs button under the Device Information section on the right hand panel
Find your app in the Process column and select the Crash log to see the contents.
IMPORTANT Be sure to symbolicate your crash report.
Export the symbolicated crash report.

	// Swift Standard Librray - String

	// ====
	// Initializing a String
	// ====

	var emptyString = "" // Empty String
	var stillEmpty = String() // Another empty String
	let helloWorld = "Hello World!" // String inferred

	#!/bin/sh

	command="${*}"
	printf "Initialized REPL for [%s]\n" "$command"
	printf "%s> " "$command"
	read -r input
	while [ "$input" != "" ];
	do
	eval "$command $input"
	printf "\n%s> " "$command"

	{% capture the_collection %}{{page.collection}}{% endcapture %}
	{% if page.collection %}
	{% assign document = site[the_collection] %}
	{% endif %}
	<h1>TITLE: {{ page.title }}</h1>
	{% for links in document %}
	{% if links.title == page.title %}
	{% unless forloop.first %}
	{% assign prevurl = prev.url %}
	{% endunless %}

	@interface MyView : UIView
	- (void)kissMyAss;
	@end

	@interface _MyViewIOS6 : MyView
	@end

	@interface _MyViewIOS7 : MyView
	@end

	#!/usr/sbin/dtrace -s

	/* Run like:
	% sudo csh
	# ./spy.d $PROCESS_ID [$INTERESTING_PROBEPROV]

	Prints a line of dashes every 5 seconds to delineate different experiments.
	*/

	#pragma D option quiet