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How can I create an Asynchronous function in Javascript?
...TML5 APIs such as the File API, Web Database API
Technologies that support onload
... many others
In fact, for the animation jQuery uses setInterval.
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When to use setAttribute vs .attribute= in JavaScript?
... in JavaScript. It should handle the different types of attributes (think "onload") correctly.
Use getAttribute/setAttribute when you wish to deal with the DOM as it is (e.g. literal text only). Different browsers confuse the two. See Quirks modes: attribute (in)compatibility.
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How do I fit an image (img) inside a div and keep the aspect ratio?
...nction() {
var img = document.getElementById('container').firstChild;
img.onload = function() {
if(img.height > img.width) {
img.height = '100%';
img.width = 'auto';
}
};
}());
</script>
CSS
#container {
width: 48px;
height: 48px;
}
#container img {
wi...
How can I handle time zones in my webapp?
...p 1. Use the Geolocation of the user using the Geolocation API
window.onload = getMyLocation;
function getMyLocation() {
if (navigator.geolocation) {
navigator.geolocation.getCurrentPosition(displayLocation);
} else {
alert("Oops, no geolocation supp...
Get city name using geolocation
... " + status);
}
});
}
</script>
</head>
<body onload="initialize()">
</body>
</html>
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Uint8Array to string in Javascript
... var bb = new Blob([new Uint8Array(buf)]);
var f = new FileReader();
f.onload = function(e) {
callback(e.target.result);
};
f.readAsText(bb);
}
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Keeping ASP.NET Session Open / Alive
...ontext.Response.Cache.SetNoServerCaching();
}
}
.JS:
window.onload = function () {
setInterval("KeepSessionAlive()", 60000)
}
function KeepSessionAlive() {
url = "/KeepSessionAlive.ashx?";
var xmlHttp = new XMLHttpRequest();
xmlHttp.open("GET", url, true);
...
How to get and set the current web page scroll position?
...in hidden variables. Then in the html of the refreshed page I use <body onLoad="window.scrollTo(x,y), where x and y are those from the hidden values values!
– xyz
Nov 4 '10 at 14:32
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Drawing an SVG file on a HTML5 canvas
...ks with some bugs (but nightly has fixed them).
var img = new Image();
img.onload = function() {
ctx.drawImage(img, 0, 0);
}
img.src = "http://upload.wikimedia.org/wikipedia/commons/d/d2/Svg_example_square.svg";
Live example here. You should see a green square in the canvas. The second green sq...
'UserControl' constructor with parameters in C#
...it is also generally a good idea to put lengthy initialization code in the OnLoad() method, especially since the DesignMode property will work at load time, but not work in the constructor.
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