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Studying for a Tech Interview Sucks, so Here's a Cheat Sheet to Help

This list is meant to be a both a quick guide and reference for further research into these topics. It's basically a summary of that comp sci course you never took or forgot about, so there's no way it can cover everything in depth. It also will be available as a gist on Github for everyone to edit and add to.

Data Structure Basics

Definition:

• Stores data elements based on an sequential, most commonly 0 based, index.
• Based on tuples from set theory.
• They are one of the oldest, most commonly used data structures.

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Deploying Elixir and Phoenix applications using Docker and Exrm

Goal

By the end of this quick guide, you will know how to compile a Phoenix app release using Exrm and run it inside a Docker container. I've found only a couple of articles that discuss getting an Elixir app up and running inside a Docker container, and even those only touched on some parts of the process. The idea is that this guide will give you a full end-to-end example of how to get all the pieces and parts working together so that you are able to deploy your Phoenix application inside a Docker container.

Assumptions

1. You already have a working Elixir environment with the Phoenix Framework installed
2. You have at least basic working knowledge of Docker, and have installed the Docker tools onto your local environment

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How to recover lost Python source code if it's still resident in-memory

I screwed up using git ("git checkout --" on the wrong file) and managed to delete the code I had just written... but it was still running in a process in a docker container. Here's how I got it back, using https://pypi.python.org/pypi/pyrasite/ and https://pypi.python.org/pypi/uncompyle6

Attach a shell to the docker container

Install GDB (needed by pyrasite)

apt-get update && apt-get install gdb

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var siteEvent;
var siteSplit;
jQuery(function() {
    siteEvent = function(c, a, l, v) {
        dataLayer.push({
            'event': 'siteEvent',
            'siteEventCategory': c,
            'siteEventAction': a,
            'siteEventLabel': l,
            'siteEventValue': v

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// Source: http://stackoverflow.com/a/17914854/381150
// Sometimes you don't have control over a web page and you need to inject some scripts which are dependent on jQuery. 
// However, this will throw a jQuery/$ undefined error and so the only solution is to poll until it's available.
function defer(method) {
    if (window.jQuery)
        method();
    else
        setTimeout(function() { defer(method) }, 50);
}

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Step 0:

Get Homebrew installed on your mac if you don't already have it

Step 1:

Install highlight. "brew install highlight". (This brings down Lua and Boost as well)

Step 2:

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// SOURCE: http://davidwalsh.name/convert-image-data-uri-javascript

function getDataUri(url, callback) {
    var image = new Image();

    image.onload = function () {
        var canvas = document.createElement('canvas');
        canvas.width = this.naturalWidth; // or 'width' if you want a special/scaled size
        canvas.height = this.naturalHeight; // or 'height' if you want a special/scaled size

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Thanks to: https://github.com/jennybc/googlesheets/edit/master/vignettes/managing-auth-tokens.md

Managing OAuth Tokens

Jenny Bryan
r Sys.Date()

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# Deploying NodeJS App on Google Cloud Platform

`authored Jul 3 2015 by kengz`

## Installation
- Account with Google Cloud Platform.
- Install [Google Cloud Platform SDK](https://cloud.google.com/sdk/) to use `cloud` in the terminal.
- Install [Docker](https://cloud.google.com/tutorials/install-docker) for the VM container.
- Locally, login for the first time: `gcloud auth login`

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# How to install packages:
# %%bash
# pip install <package>