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<!doctype html>
<html lang="en">
<head>
<title>FEWD: Class 18</title>
<link rel="stylesheet" href="css/reveal.css">
<link rel="stylesheet" href="css/general-assembly.css" id="theme">
<link rel="shortcut icon" type="image/x-icon" href="img/favicon.ico" />
<link rel="stylesheet" href="css/zenburn.css">
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/highlight.js/9.9.0/styles/default.min.css">
<script src="https://cdnjs.cloudflare.com/ajax/libs/highlight.js/9.9.0/highlight.min.js"></script>
</head>
<body>
<div class="reveal">
<div class="slides">
<section class="hero condensed">
<h1>HELLO</h1>
<div class="opening-instructions">
<p>1) Please download <a href="../materials/class18.zip">Class 18 Starter Code</a></p>
<p>2) Move the following into your <code class="code">class-work</code> directory:</p>
<div class="pad-left-lg">
<p>• <code class="code">light-box-example</code></p>
<p>• <code class="code">raindrops-example</code></p>
<p>• <code class="code">google-maps-example</code></p>
</div>
<p>3) Solutions to <code class="code">cash-register</code> and <code class="code">citi-pix</code> included</p>
</div>
</section>
<section class="hero condensed">
<h1>Class <span class="red">#18</span></h1>
<h1>11/19/2018</h1>
<h1 class="lesson-title">jQuery Plugins + Google Maps</h1>
</section>
<!-- ANNOUNCEMENTS -->
<section data-background="#FFF" class="text-left">
<div class="heading">Announcements</div>
<p>• Final Projects:</p>
<div class="pad-left-lg">
<p>⇒ Due in 9 days!</p>
</div>
<p>• No Class:</p>
<div class="pad-left-lg">
<p>⇒ Wednesday, 11/21</p>
</div>
</section>
<!-- AGENDA -->
<section data-background="#FFF" class="text-left">
<div class="heading">Agenda</div>
<!-- <p>• <code class="code lower">cash-register</code> Review</p> -->
<p>• <a href="#/jquery-plugins">jQuery Plugins</a></p>
<p>• <a href="#/google-maps">Google Maps API</a></p>
<p>• <a href="#/arrays">Arrays</a></p>
<p>• <a href="#/iteration">Array Iteration</a></p>
<p>• Final Project Work</p>
</section>
<!-- WARM UP -->
<section class="title">
<h1>Warm Up</h1>
</section>
<section data-background="#FFF" class="text-left">
<div class="heading">Warm Up</div>
<p>1) Find a partner</p>
<p>2) Ask your partner what their final project is</p>
<p>3) Inquire if your partner has encountered challenges</p>
<p>4) Commiserate</p>
</section>
<!-- REVIEW -->
<section class="title">
<h1>Cash Register Review</h1>
</section>
<!-- jQuery Plugins -->
<section class="title" id="jquery-plugins">
<h1>jQuery Plugins</h1>
</section>
<section data-background="#FFF" class="text-left">
<div class="heading">jQuery Plugins</div>
<div class="text-smaller">
<p>• Plugins are pre-written pieces of JavaScript</p>
<div class="fragment">
<p>• Built to solve a particular issue:</p>
<div class="pad-left-lg text-smaller">
<p>⇒ Fullscreen video player</p>
<p>⇒ Image carousel</p>
</div>
</div>
<div class="fragment">
<p>• Easy to install - add plugin's <code class="code">script</code> tag <u>below</u> jQuery<span class="red">*</span>:</p>
<pre><code class="code">
<script src="jquery.js"></script>
<script src="my-super-plugin.js"></script>
</code></pre>
</div>
</div>
</section>
<section data-background="#FFF" class="text-left">
<div class="heading">jQuery Plugins: What to look for?</div>
<p>• There are 1000's of plugins; be judicious:</p>
<div class="pad-left-lg">
<p class="fragment">⇒ Recently updated</p>
<p class="fragment">⇒ Well-documented</p>
<p class="fragment">⇒ The more contributors the better</p>
<p class="fragment">⇒ Open source</p>
<p class="fragment">⇒ Hosted on GitHub</p>
</div>
</section>
<section data-background="#FFF" class="text-left">
<div class="heading">jQuery Plugins: Tips for using</div>
<p class="fragment">1) Read the documentation</p>
<p class="fragment">2) Seriously, read the documentation</p>
<p class="fragment">3) Look for, and copy, examples</p>
<p class="fragment">4) Start simple<span class="fragment">, then add complexity</span></p>
<p class="fragment">5) Search for tutorials/examples if you get stuck</p>
<p class="fragment">6) Open a GitHub issue if you think you found a bug</p>
</section>
<!-- Light Box Tutorial -->
<section data-background="#FFF" class="text-left">
<div class="heading">Lightbox Plugin</div>
<p>1) Open <code class="code">light-box-example</code> in Sublime Text</p>
<p>2) Your goal: get Lightbox working!</p>
<p>3) Read the <a href="http://lokeshdhakar.com/projects/lightbox2/" target="_blank">Lightbox Documentation</a></p>
<p>4) Note that all the required assets are downloaded</p>
</section>
<!-- RAIN DROPS PLUGIN -->
<section data-background="#FFF" class="text-left">
<div class="heading">Raindrops.js</div>
<p>1) Open <code class="code">raindrops-example</code></p>
<p>2) Visit <a href="http://daniellaharel.com/raindrops/" target="_blank">http://daniellaharel.com/raindrops/</a></p>
<p>3) Find a partner</p>
<p>4) Successfully implement <code class="code">raindrops.js</code></p>
<p>5) Note: you will have to download the script</p>
</section>
<!-- BREAK (5-7 mins) -->
<section class="center">
<h1>5 minute break</h1>
<img src="img/main/break-time-bear.jpg">
</section>
<!-- GOOGLE MAPS API -->
<section class="title" id="google-maps">
<h1>Google Maps API</h1>
</section>
<section data-background="#FFF" class="text-left">
<div class="heading">What is an API?</div>
<div class="text-smaller">
<p>• API ⇒ Application Programming Interface</p>
<p>• Instructions for interacting with a piece of software</p>
<p>• Middleman: allows different pieces of software to talk</p>
</div>
<div class="text-center">
<img src="img/class18/api.png" alt="">
</div>
</section>
<section class="center">
<h2>Let's Build a Map</h2>
<div class="text-left">
<p>• <a target="_blank" href="https://developers.google.com/maps/documentation/javascript/tutorial">Google Maps JavaScript API V3 Documentation</a></p>
<p>• Open <code class="code">google-maps-example</code> in Sublime Text</p>
</div>
</section>
<section data-background="#FFF" class="text-left">
<div class="heading">Let's Build a Map</div>
<p>1) Obtain API Key</p>
<p>1.5) As of July 2018: Store a credit card...</p>
<p>2) Add starter HTML and CSS</p>
<p>3) Enable map using JS</p>
<p>4) ???</p>
<p>5) Profit</p>
</section>
<section data-background="#FFF" class="text-left">
<div class="heading">Google Maps: Changing the <code class="lower">center</code></div>
<p>• Google Maps require:</p>
<p class="pad-left-lg">⇒ <code class="code">center</code></p>
<p class="pad-left-lg">⇒ <code class="code">zoom</code></p>
<p>• Challenge: change the <code class="code">center</code> to NYC</p>
<p class="pad-left-lg fragment">⇒ Hint: look up NYC's coordinates!</p>
<p class="pad-left-lg fragment">⇒ 40.7127 N, 74.0059 W</p>
</section>
<section data-background="#FFF" class="text-left">
<div class="heading">Google Maps: Adding Markers</div>
<div class="text-smaller">
<p>• Markers require:</p>
<div class="pad-left-lg">
<p>⇒ <code class="code">position: {lat: y, lng: x}</code></p>
<p>⇒ <code class="code">map</code></p>
</div>
<p>• Challenge: use the following to add a marker at NYC</p>
<pre><code class="code">
var marker = new google.maps.Marker({
position: {lat: y, lng: x},
map: map,
title: 'New York, NY'
});
</code></pre>
</div>
</section>
<section data-background="#FFF" class="text-left">
<div class="heading">Google Maps: Multiple Markers</div>
<div class="text-smallest">
<p>• Easiest way to add multiple markers:</p>
<div class="fragment">
<pre><code class="code">
var marker1 = new google.maps.Marker({
position: {lat: 40, lng: 50},
map: map,
});
var marker2 = new google.maps.Marker({
position: {lat: 45, lng: 45},
map: map,
});
var marker3 = new google.maps.Marker({
position: {lat: 25, lng: 75},
map: map,
});
...
</code></pre>
</div>
<p class="fragment">• Is this efficient? Say I want to add 100 markers? 1,000?</p>
</div>
</section>
<section class="title" id="arrays">
<h1>Arrays</h1>
</section>
<section data-background="#FFF" class="text-left">
<div class="heading">Arrays</div>
<div class="text-smallest">
<p>• Arrays are a list-like data structure of comma-separated values</p>
<p>• Useful for storing a sequence of related data</p>
<p>• Declare arrays using square brackets: <code class="code">[ ]</code></p>
<pre><code class="code">
var friends = ['Moe', 'Larry', 'Curly']
</code></pre>
<div class="fragment">
<p>• <b>Element</b> - an item inside the array</p>
<p>• <b>Index</b> - numerical location of each element in the array</p>
<p class="pad-left-lg">⇒ Starts at position 0 - aka "0-indexed"</p>
</div>
</div>
</section>
<section data-background="#FFF" class="text-left">
<div class="heading">Arrays</div>
<div class="text-smallest">
<p>• JS provides multiple methods for array creation:</p>
<div class="pad-left-lg">
<div class="fragment">
<p>⇒ The <code class="code">new</code> keyword</p>
<pre><code class="code">
var drinks = new Array('beer', 'coffee', 'water');
</code></pre>
</div>
<div class="fragment">
<p>⇒ Using the array literal</p>
<pre><code class="code">
var drinks = ['beer', 'coffee', 'water'];
</code></pre>
</div>
</div>
<div class="fragment">
<p>• While similar, there are crucial differences</p>
<p>• Use the <u>array literal</u> for now</p>
</div>
</div>
</section>
<section data-background="#FFF" class="text-left">
<div class="heading">Arrays</div>
<div class="text-smallest">
<p>• Use <code class="code">[index]</code> to retrieve values from an array</p>
<p>• Remember that arrays are <u>0-indexed</u></p>
<pre><code class="code">
var drinks = ['beer', 'coffee', 'water'];
drinks[0]
// 'beer'
drinks [0+1]
// 'coffee'
var x = drinks.length - 1
drinks[x]
// 'water'
drinks[4]
// undefined
</code></pre>
</div>
</section>
<section data-background="#FFF" class="text-left">
<div class="heading">Array Iteration</div>
<div class="text-smallest">
<p>• Consider an array of names:</p>
<pre><code class="code">
var boroughs = ['manhattan', 'the bronx', 'queens', 'brooklyn', 'staten island']
</code></pre>
<p class="fragment">• How would we <code class="code">console.log</code> all the names in this array?</p>
<div class="fragment">
<pre><code class="code">
console.log(boroughs[0])
console.log(boroughs[1])
console.log(boroughs[2])
console.log(boroughs[3])
console.log(boroughs[4])
</code></pre>
</div>
<p class="fragment">• Is this efficient/scalable?</p>
</div>
</section>
<!-- ARRAY ITERATION -->
<section class="title" id="iteration">
<h1>Array Iteration</h1>
</section>
<section data-background="#FFF" class="text-left">
<div class="heading">Array Iteration</div>
<div class="text-smaller">
<p>• Iteration: process of running the same function for every element in an array</p>
<div class="fragment">
<pre><code class="code">
var boroughs = ['manhattan', 'the bronx', 'queens', 'brooklyn', 'staten island']
boroughs.forEach(logBorough)
function logBorough(borough) {
console.log(borough)
}
// 'manhattan'
// 'the bronx'
// 'queens'
// 'brooklyn'
// 'staten island'
</code></pre>
</div>
</div>
</section>
<section data-background="#FFF" class="text-left">
<div class="heading">Array Iteration</div>
<div class="text-smaller">
<p>• Apply array iteration with Google Maps Markers:</p>
<p>1) Create an array of location objects</p>
<div class="pad-left-lg">
<p>⇒ Each should contain <code class="code">lat</code>, <code class="code">lng</code>, and <code class="code">title</code></p>
</div>
<p>2) Apply the <code class="code">forEach</code> method to the array</p>
<p>3) Write a function that applies the marker to the <code class="code">map</code></p>
</div>
</section>
<section data-background="#FFF" class="text-left">
<div class="heading">Array Iteration</div>
<div class="text-smallest">
<p>• Create an array of location objects containing <code class="code">lat</code>, <code class="code">lng</code>, and <code class="code">title</code>:</p>
<pre><code class="code">
var locations = [
{
lat: 40.7484444,
lng: -73.9878441,
title: 'Empire State Building',
},
{
lat: 40.7516248,
lng: -73.9776907,
title: 'Chrysler Building',
},
{
lat: 40.7339877,
lng: -73.980817,
title: 'Flatiron Building',
},
]
</code></pre>
</div>
</section>
<section data-background="#FFF" class="text-left">
<div class="heading">Array Iteration</div>
<p>• Apply the <code class="code">forEach</code> method to the array</p>
<pre><code class="code">
locations.forEach(processLocation)
function processLocation(location) {
console.log(location)
}
</code></pre>
<p>• Use <code class="code">console.log</code> to test that code is working</p>
</section>
<section data-background="#FFF" class="text-left">
<div class="heading">Array Iteration</div>
<p>• Update <code class="code">processLocation</code> to render the markers</p>
<pre><code class="code">
function processLocation(location) {
var marker = new google.maps.Marker({
position: {
lat: location.lat,
lng: location.lng,
},
title: location.title,
map: map,
})
}
</code></pre>
</section>
<!-- THE END -->
<section class="center">
<img src="img/main/the-end.jpg">
</section>
<!-- ON DECK -->
<section data-background="#FFF" class="text-left">
<div class="heading">On Deck: #19 - Final Project Lab</div>
<p>• In-Class Final Project Work</p>
</section>
<section class="center">
<h1>Exit Tickets!</h1>
</section>
</div>
</div>
<script src="js/head.min.js"></script>
<script src="js/reveal.min.js"></script>
<script src="js/main.js"></script>
</body>
</html>