634
H
<h1> element, 33
<h2> element, 33
<h3> element, 33
<h4> element, 33
<h5> element, 34
<h6> element, 34
H.264 (MPEG-4) format, 438
handling errors. See error handling
haschange event, 117
hash (#) symbol
id selectors and, 146
internal hyperlinks and, 46
jQuery support, 289
in manifest file, 609
in RGB values, 166
haversine formula to calculate distances, 548–549
<head> element
described, 9, 34, 40
<script> element and, 102–103
<style> element and, 140
HEAD method (HTTP), 315
<header> element, 34, 208
height attribute
<canvas> element, 460
<embed> element, 50
<object> element, 51
<video> element, 441
Hello World program
creating from JavaScript, 90–99
creating from Node.js, 342–344
creating with express, 356–357
hexadecimal values, color names table, 167–171
<hgroup> element, 210
hidden global attribute, 37
.hidden selector, 237
<hn> element, 209–210, 213
hole variables, 512
:hover pseudo class, 149, 154–155monitored positioning, 546–549
practice exercises, 550–553
Geolocation object
addressing privacy, 544
basic positioning, 540–545
calculating distance between samples,
548–549
clearWatch() method, 540, 546
getCurrentPosition() method, 540–545
handling errors, 543–544
lesson summary and review, 545–546, 549, 554
monitored positioning, 546–549
practice exercises, 550–553
retrieving current position, 541–542
specifying options, 544–545
watchPosition() method, 540, 546–547, 549
Geolocation Working Group, 539
GET method (HTTP)
CRUD operations and, 316, 365
described, 315, 322–323
REST support, 365–366, 368
Get Windows Azure SDK For .NET template, 10
getDistance() function, 548–549
getter methods, 274–275
GIF file type, 48–49
git source control manager, 350
global attributes, 37
global objects, 67
Global Positioning System (GPS), 539, 541
global scope, 77–78
global variables, 77–78
Go To Definition feature, 4
Google Gears, 557
GPS (Global Positioning System), 539, 541
gradient fill, 466–468
greater-than sign (>), 41, 148
Grid App template, 6
grouping selectors, 150–151Geolocation object