-
Notifications
You must be signed in to change notification settings - Fork 13
/
class14.html
368 lines (297 loc) · 12.9 KB
/
class14.html
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
<!DOCTYPE html>
<html lang="en">
<head>
<title>FEWD: Class 14</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">
<h1>HELLO</h1>
<div class="opening-instructions">
<p>1) Please download <a href="../materials/class14.zip">Class 14 Starter Code</a></p>
<p>2) Move the following into <code class="code">class-work</code>:</p>
<div class="pad-left-lg">
<p>• <code class="code">jquery-city</code></p>
</div>
<p>3) Move the following into <code class="code">homework</code>:</p>
<div class="pad-left-lg">
<p>• <code class="code">accordian</code></p>
</div>
<p>4) <code class="code">calculator-box-solution</code> included</p>
</div>
</section>
<section class="hero condensed">
<h1>Class <span class="red">#11</span></h1>
<h1>10/31/2018</h1>
<h1 class="lesson-title">jQuery (pt. 2)</h1>
</section>
<!-- ANNOUNCEMENTS -->
<section data-background="#FFF" class="text-left">
<div class="heading">Announcements</div>
<p>• Final Projects:</p>
<div class="pad-left-lg text-smaller">
<p>⇒ Third deliverable due Monday, November 5th</p>
<p>⇒ HTML/CSS Rough Draft</p>
</div>
</section>
<!-- AGENDA -->
<section data-background="#FFF" class="text-left">
<div class="heading">Agenda</div>
<p>• <a href="#/jquery-hide-show">Element visibility</a></p>
<p>• <a href="#/jquery-attr">Manipulating attributes with <code>.attr()</code></a></p>
<p>• <a href="#/jquery-this"><code>$(this)</code> keyword</p></a>
<p>• <a href="#/dom-traversal">Document traversal</a></p>
</section>
<!-- Element Visibility -->
<section class="title" id="jquery-hide-show">
<h1>Element Visibility</h1>
</section>
<section data-background="#FFF" class="text-left">
<div class="heading">Element Visibility</div>
<p>• Hiding/showing HTML is a common pattern</p>
<p>• Render more content w/out scroll or new page</p>
<p>• Useful for menus / tooltips / modals / overlays</p>
<p>• Hidden elements not destroyed - just not <b>visible</b></p>
<p>• Ex: <a href="http://getbootstrap.com/docs/4.0/components/modal/#live-demo" target="_blank">Bootstrap modal</a></p>
</section>
<section data-background="#FFF" class="text-left">
<div class="heading">Element Visibility with jQuery</div>
<div class="text-smaller">
<p><code class="code">.hide()</code></p>
<p class="pad-left-lg text-smallest">⇒ Hides elements by setting their <b>inline</b> style to <code class="code">display: none;</code></p>
<pre><code class="code">
$('p').hide()
</code></pre>
<div class="fragment">
<p><code class="code">.show()</code></p>
<p class="pad-left-lg text-smallest">⇒ Reveals elements by setting their <b>inline</b> style to its previous value</p>
<pre><code class="code">
$('p').show()
</code></pre>
</div>
</div>
</section>
<section data-background="#FFF" class="text-left">
<div class="heading">Element Visibility with jQuery</div>
<div class="text-smallest">
<p>• Change the duration by providing an option:</p>
<div class="fragment">
<p class="pad-left-lg">⇒ String:</p>
<pre><code class="code">
$('p').hide('slow')
$('p').show('fast')
</code></pre>
</div>
<div class="fragment">
<p class="pad-left-lg">⇒ Number (milliseconds): </p>
<pre><code class="code">
$('p').hide(700)
$('p').show(300)
</code></pre>
</div>
</div>
</section>
<section data-background="#FFF" class="text-left">
<div class="heading">Element Visibility with jQuery</div>
<div class="text-smaller">
<p>• jQuery provides alternatives to <code class="code">.hide()</code> and <code class="code">.show()</code>:</p>
<div class="pad-left-lg text-smaller">
<p>⇒ <code class="code">.fadeIn()</code> and <code class="code">.fadeOut()</code></p>
<p>⇒ <code class="code">.slideDown()</code> and <code class="code">.slideUp()</code></p>
<p>⇒ <code class="code">.slideToggle()</code></p>
</div>
<div class="fragment">
<p>• Each takes a <code class="code">duration</code> option:</p>
<pre><code class="code">
$('p').fadeIn('fast')
$('p').slideUp(900)
</code></pre>
</div>
</div>
</section>
<section class="center">
<h1><a target="_blank" href="http://codepen.io/cheshireoctopus/pen/EVqraa?editors=101">CodeAlong</a></h1>
</section>
<!-- MANIPULATING ATTRIBUTES -->
<section class="title" id="jquery-attr">
<h1>Element Attributes</h1>
</section>
<section data-background="#FFF" class="text-left">
<div class="heading">Manipulating Element Attributes</div>
<p>• What are the attributes in the following:</p>
<pre><code class="code">
<img src="keanu-reeves.jpg" alt="World's coolest dude" />
</code></pre>
<div class="fragment">
<p>• Use <code class="code">.attr()</code> to change attributes:</p>
<pre><code class="code">
$('img').attr('src', 'gary-busey.jpg')
<img src="gary-busey.jpg" alt="World's coolest dude" />
</code></pre>
</div>
</section>
<section class="center">
<h1><a target="_blank" href="http://codepen.io/cheshireoctopus/pen/WQVPzW?editors=101">CodeAlong</a></h1>
</section>
<section data-background="#FFF" class="text-left">
<div class="heading">Exercise: jQuery City</div>
<p>• Open <code class="code">jquery-city</code> in Sublime Text</p>
<p>• Clicking on a thumbnail changes the <code class="code">src</code> of the <code class="code"><img id="big-image" /></code> to the <code class="code">src</code> from the thumbnail</p>
<p>• Hint: use <code class="code">.attr()</code></p>
</section>
<!-- BREAK (5-7 mins) -->
<section class="center">
<h1>5 minute break</h1>
<img src="img/main/break-time-bear.jpg">
</section>
<!-- $(this) -->
<section class="title" id="jquery-this">
<h1><code class="lower">$(this)</code></h1>
</section>
<section data-background="#FFF" class="text-left">
<div class="heading"><code class="lower">$(this)</code></div>
<p>• Open the following: <a target="_blank" href="http://codepen.io/cheshireoctopus/pen/EVqreN?editors=101">CodePen</a></p>
<p>• What's going on here?</p>
<p class="fragment">• How about turning the individual <code class="code">span</code> red on click?</p>
</section>
<section data-background="#FFF" class="text-left">
<div class="heading"><code class="lower">$(this)</code></div>
<div class="text-smallr">
<p>• Helps target specific element that started an event</p>
<div class="fragment">
<p>• Refactor previous CodePen using <code class="code">$(this)</code>:</p>
<pre><code class="code">
fuction turnRed() {
$(this).css('color', 'red')
}
$('span').click(turnRed)
</code></pre>
</div>
<p class="fragment">• Now, the <code class="code">span</code> that started the event turns red</p>
</div>
</section>
<section data-background="#FFF" class="text-left">
<div class="heading"><code class="lower">$(this)</code></div>
<div class="text-smaller">
<p>• In JS, functions are called by an object</p>
<p class="fragment">• This object can be accessed inside the function via <code class="code">this</code></p>
<div class="fragment">
<p>• <code class="code">this</code> is the "context" of the function</p>
<p>• Refers to whatever object called it</p>
</div>
<div class="fragment">
<p>• We can "wrap" <code class="code">this</code> in jQuery: <code class="code">$(this)</code></p>
<p>• Surprise: DOM nodes (HTML elements) are JS objects!</p>
</div>
</div>
</section>
<section class="center">
<h1>CodeAlong</h1>
<p>Refactor jQuery City using <code class="code">$(this)</code></p>
</section>
<section class="title" id="dom-traversal">
<h1>Document Traversal</h1>
</section>
<section data-background="#FFF" class="text-left">
<div class="heading">Document Traversal</div>
<p>• Given an element, can I access elements around it?</p>
<div class="fragment">
<p>• jQuery <a target="_blank" href="http://api.jquery.com/category/traversing/">"walks the DOM"</a></p>
</div>
<div class="fragment">
<p>• What do you think the following will do?</p>
<pre><code class="code">
$('#wrapper').children()
</code></pre>
</div>
<p class="fragment">• Returns the elements nested inside of <code class="code">#wrapper</code></p>
</section>
<section data-background="#FFF" class="text-left">
<div class="heading">Document Traversal: HTML Review</div>
<pre><code class="code">
<div id="wrapper">
<p id="one">
<span>Some Text</span>
</p>
<p id="two">
<span>Some Text</span>
</p>
</div>
</code></pre>
</section>
<section data-background="#FFF" class="text-left">
<div class="heading">Document Traversal: It's all in the family</div>
<p><code class="code">.children()</code></p>
<p class="pad-left-lg">⇒ Get an element's child elements</p>
<div class="fragment">
<p><code class="code">.parent()</code></p>
<p class="pad-left-lg">⇒ Get an element's parent element</p>
</div>
<div class="fragment">
<p><code class="code">.siblings()</code></p>
<p class="pad-left-lg">⇒ Get an element's sibling elements</p>
</div>
</section>
<section data-background="#FFF" class="text-left">
<div class="heading">Document Traversal: Siblings</div>
<p><code class="code">.next()</code></p>
<p class="pad-left-lg">⇒ Get the immediate following sibling element</p>
<div class="fragment">
<p><code class="code">.prev()</code></p>
<p class="pad-left-lg">⇒ Get the immediate preceding sibling element</p>
</div>
</section>
<section data-background="#FFF" class="text-left">
<div class="heading">Document Traversal: Find</div>
<div class="text-smaller">
<p>• <code class="code">.find('some-css-selector')</code></p>
<p class="pad-left-lg">⇒ Will find child elements matching a selector</p>
<div class="fragment">
<pre><code class="code">
<div id="wrapper">
<p class="post">Lorem ipsum dolor sit amet.</p>
<p>Lorem ipsum dolor sit amet.</p>
<p class="post">Lorem ipsum dolor sit amet.</p>
</div>
</code></pre>
<p>• What does this do?</p>
<pre><code class="code">
$('#wrapper').find('.post').css('color', 'red')
</code></pre>
</div>
</div>
</section>
<section data-background="#FFF" class="text-left">
<div class="heading">Lab/HW</div>
<p>• Open <code class="code">accordian</code> in Sublime Text</p>
<p>• Follow the instructions in <code class="code">js/app.js</code></p>
</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: #15 - Conditional Statements</div>
<p>• Conditional statements</p>
<p>• Manipulating CSS Classes</p>
<p>• Chaining Functions</p>
<p>• Final Proect Convo's</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>