My HTML 5

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<strong>HTML</strong>5 The following table describes the possible error codes returned in the PositionError object. Code Constant Description 0 UNKNOWN_ERROR 1 PERMISSION_DENIED 2 POSITION_UNAVAILABLE 3 TIMEOUT The method failed to retrieve the location of the device due to an unknown error. The method failed to retrieve the location of the device because the application does not have permission to use the Location Service. The location of the device could not be determined. The method was unable to retrieve the location information within the specified maximum timeout interval. Example Following is a sample code which makes use of PositionError object. Here errorHandler method is a callback method: function errorHandler( err ) { } if (err.code == 1) { } ... // access is denied Position Options Following is the actual syntax of getCurrentPosition() method: getCurrentPosition(callback, ErrorCallback, options) Here third argument is the PositionOptions object which specifies a set of options for retrieving the geographic location of the device. Following are the options which can be specified as third argument: Property Type Description enableHighAccuracy timeout Boolean Number Specifies whether the widget wants to receive the most accurate location estimate possible. By default this is false. The timeout property is the number of milliseconds your web application is willing to wait for a position. 133
<strong>HTML</strong>5 maximumAge Number Specifies the expiry time in milliseconds for cached location information. Example Following is a sample code which shows how to use above mentioned methods: function getLocation() { var geolocation = navigator.geolocation; geolocation.getCurrentPosition(showLocation, errorHandler, {maximumAge: 75000}); } 134
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HTML5 About the Tutorial HTML5 is t
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HTML5 Table of Contents About the T
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HTML5 7. HTML5 − MATHML .........
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HTML5 Embedding Audio .............
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1. HTML5 − Overview HTML5 HTML5 i
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2. HTML5 − Syntax HTML5 The HTML
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HTML5 HTML5 Document The following
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HTML5 This is aside part of the
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HTML5 height hidden id Numeric Valu
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HTML5 ondragstart script Triggers a
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5. HTML5 − Web Forms 2.0 HTML5 We
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HTML5 only URL address either in ht
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HTML5 Date : Output HTML5 - mo
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HTML5 HTML5 - time A time (hour, mi
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HTML5 Output HTML5 - email It accep
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HTML5 function showResult() { x =
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HTML5 Enter email : Try to sub
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6. HTML5 − SVG HTML5 SVG stands f
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HTML5 HTML5 SVG Rectangle T
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HTML5 This would produce the follow
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HTML5 SVG HTML5 SVG Gradient
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HTML5 43
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HTML5 This will produce the followi
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HTML5 Matrix Presentation Examples
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8. HTML5 − Web Storage HTML5 HTML
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HTML5 Following is the code which w
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HTML5 53
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HTML5 Executing queries To execute
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HTML5 db.transaction(function (tx)
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HTML5 Server Side Script for SS
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11. HTML5 − WebSockets HTML5 WebS
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HTML5 if ("WebSocket" in window) {
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12. HTML5 − Canvas HTML5 HTML5 el
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HTML5 Drawing Quadratic Using Image
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HTML5 } } The above code woul
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HTML5 ctx.arc(75,75,35,0,Math.PI,fa
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HTML5 if (canvas.getContext){ // us
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HTML5 } margin: 0px auto; functio
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HTML5 #test { width: 100px; heigh
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HTML5 This method adds the given po
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HTML5 HTML5 Canvas - Using Images T
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Page 86 and 87: HTML5 } else { alert('You need Safa
Page 88 and 89: HTML5 ctx.fillStyle = radgrad3; ctx
Page 90 and 91: HTML5 for (var j=0;j
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Page 94 and 95: HTML5 ctx.textBaseline = 'Top'; ctx
Page 96 and 97: HTML5 img.src = 'images/pattern.jpg
Page 98 and 99: HTML5 // use getContext to use the
Page 100 and 101: HTML5 if (canvas.getContext){ // us
Page 102 and 103: HTML5 height:100px; margin:0px auto
Page 104 and 105: HTML5 The above example would produ
Page 106 and 107: HTML5 The above example would p
Page 108 and 109: HTML5 drawSpirograph(ctx,22,6,5); c
Page 110 and 111: HTML5 The transform(m11, m12, m21,
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Page 116 and 117: HTML5 HTML5 Canvas - Animations HTM
Page 118 and 119: HTML5 } ctx.restore(); else { alert
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Page 122 and 123: HTML5 Audio Attribute Specification
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Page 126 and 127: HTML5 Geolocation getCurrentPositio
Page 128 and 129: HTML5 Geolocation watchPosition() A
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Page 136 and 137: 15. HTML5 − Microdata HTML5 Micro
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Page 140 and 141: 16. HTML5 − Drag & drop HTML5 Dra
Page 142 and 143: HTML5 Uses the given element to upd
Page 144 and 145: HTML5 #boxA, #boxB { float:left
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Page 148 and 149: HTML5 How Web Workers Work? Web Wor
Page 150 and 151: HTML5 worker.onmessage = function (
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Page 154 and 155: HTML5 } }; else { } alert("Kenny co
Page 156 and 157: HTML5 window.alert("Your browser do
Page 158 and 159: HTML5 .add({ id: "00-03", name: "Ke
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Page 162 and 163: HTML5 mc.port1.start(); } window.ad
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Page 166 and 167: HTML5 }; } xhr.onerror = function()
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