Preslav Rachev preslavrachev

## The Technical Interview Cheat Sheet.md

      
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                preslavrachev
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              August 25, 2015 19:35
                — forked from tsiege/The Technical Interview Cheat Sheet.md
            
              
                This is my technical interview cheat sheet. Feel free to fork it or do whatever you want with it. PLEASE let me know if there are any errors or if anything crucial is missing. I will add more links soon.
              
          
    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

###Array
####Definition:

Stores data elements based on an sequential, most commonly 0 based, index.
Based on tuples from set theory.


## SpringApplication.java
private Class<?> deduceMainApplicationClass() {
	try {
		StackTraceElement[] stackTrace = new RuntimeException().getStackTrace();
		for (StackTraceElement stackTraceElement : stackTrace) {
			if ("main".equals(stackTraceElement.getMethodName())) {
				return Class.forName(stackTraceElement.getClassName());
			}
		}
	}
	catch (ClassNotFoundException ex) {

## gulpfile.js
/**
 * This gulpfile will copy static libraries and a index.html file as well as
 * merge, babelify and uglify the rest of the javascript project.
 *
 * TODO:
 * - Separate media, libs and src with different watchers.
 * - Media and libs should only be copied to dist if they are different sizes.
 *
 * The expected project is to be laid out as such:
 *

## speech.html
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"
                      "http://www.w3.org/TR/html4/strict.dtd">
<html>
  <head>
    <title>PhoneGap Events Example</title>

    <script type="text/javascript" charset="utf-8" src="phonegap.0.9.5.js"></script>
    <script type="text/javascript" charset="utf-8" src="tts.js"></script>
    <script type="text/javascript" charset="utf-8">

## app.js
var express = require('express');
var session = require('express-session');
var cookieParser = require('cookie-parser');
var flash = require('connect-flash');
var app = express();

app.use(cookieParser('secret'));
app.use(session({cookie: { maxAge: 60000 }}));
app.use(flash());

## Permissions.java
PackageManager pm = getPackageManager();
List<ApplicationInfo> packages = pm.getInstalledApplications(PackageManager.GET_META_DATA);

for (ApplicationInfo applicationInfo : packages) {
   Log.d("test", "App: " + applicationInfo.name + " Package: " + applicationInfo.packageName);

   try {
      PackageInfo packageInfo = pm.getPackageInfo(applicationInfo.packageName, PackageManager.GET_PERMISSIONS);

      //Get Permissions

## related.js
//One-to-Many
Post.model.find().where('author', author.id).exec(function(err, posts) {
     // ...
});

//Many-to-Many
Post.model.find().where('categories').in([category.id]).exec(function(err, posts) {
     // ...
});

## app.js
var myApp = angular.module('myApp', [], function($interpolateProvider) {
    $interpolateProvider.startSymbol('[[');
    $interpolateProvider.endSymbol(']]');
});

## gulpfile.js
gulp.task('nodemon', function(cb) {
  var nodemon = require('gulp-nodemon');

  // We use this `called` variable to make sure the callback is only executed once
  var called = false;
  return nodemon({
    script: 'server.js',
    watch: ['server.js', 'server/**/*.*']
  })
  .on('start', function onStart() {

## index.js
//1. Set up your Mandrill credentials
keystone.init({
    // ...
    'mandrill api key': 'YOUR_API_KEY_HERE',
    // ...
    'emails': 'templates/emails',
});

//or alternatively, you can set the key later
keystone.set('mandrill api key', 'YOUR_API_KEY_HERE');
	private Class<?> deduceMainApplicationClass() {
	try {
	StackTraceElement[] stackTrace = new RuntimeException().getStackTrace();
	for (StackTraceElement stackTraceElement : stackTrace) {
	if ("main".equals(stackTraceElement.getMethodName())) {
	return Class.forName(stackTraceElement.getClassName());
	}
	}
	}
	catch (ClassNotFoundException ex) {
	/**
	* This gulpfile will copy static libraries and a index.html file as well as
	* merge, babelify and uglify the rest of the javascript project.
	*
	* TODO:
	* - Separate media, libs and src with different watchers.
	* - Media and libs should only be copied to dist if they are different sizes.
	*
	* The expected project is to be laid out as such:
	*
	<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"
	"http://www.w3.org/TR/html4/strict.dtd">
	<html>
	<head>
	<title>PhoneGap Events Example</title>

	<script type="text/javascript" charset="utf-8" src="phonegap.0.9.5.js"></script>
	<script type="text/javascript" charset="utf-8" src="tts.js"></script>
	<script type="text/javascript" charset="utf-8">
	var express = require('express');
	var session = require('express-session');
	var cookieParser = require('cookie-parser');
	var flash = require('connect-flash');
	var app = express();

	app.use(cookieParser('secret'));
	app.use(session({cookie: { maxAge: 60000 }}));
	app.use(flash());
	PackageManager pm = getPackageManager();
	List<ApplicationInfo> packages = pm.getInstalledApplications(PackageManager.GET_META_DATA);

	for (ApplicationInfo applicationInfo : packages) {
	Log.d("test", "App: " + applicationInfo.name + " Package: " + applicationInfo.packageName);

	try {
	PackageInfo packageInfo = pm.getPackageInfo(applicationInfo.packageName, PackageManager.GET_PERMISSIONS);

	//Get Permissions
	//One-to-Many
	Post.model.find().where('author', author.id).exec(function(err, posts) {
	// ...
	});

	//Many-to-Many
	Post.model.find().where('categories').in([category.id]).exec(function(err, posts) {
	// ...
	});
	var myApp = angular.module('myApp', [], function($interpolateProvider) {
	$interpolateProvider.startSymbol('[[');
	$interpolateProvider.endSymbol(']]');
	});
	gulp.task('nodemon', function(cb) {
	var nodemon = require('gulp-nodemon');

	// We use this `called` variable to make sure the callback is only executed once
	var called = false;
	return nodemon({
	script: 'server.js',
	watch: ['server.js', 'server/*/.*']
	})
	.on('start', function onStart() {
	//1. Set up your Mandrill credentials
	keystone.init({
	// ...
	'mandrill api key': 'YOUR_API_KEY_HERE',
	// ...
	'emails': 'templates/emails',
	});

	//or alternatively, you can set the key later
	keystone.set('mandrill api key', 'YOUR_API_KEY_HERE');