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I would like to create a webpage which contains several divs each containing the same draw function with different implementation (like a generic interface). After loading the page I want to iterate through all the divs and call each draw function one after the other.
My page so far looks like this:
<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=ISO-8859-1">
<script language="javascript" type="text/javascript" src="jquery-1.8.2.js"></script>
</head>
<body>
<script type='text/javascript'>
$( document ).ready( function() {
// Draw all slots
$('div.slot').each(function(i, d) {
console.log('slot found: ' + d.id);
// d.draw() does not work
draw();
});
});
</script>
<div class="slot" id="slot1">
<script type='text/javascript'>
function draw() {
console.log('Here we draw a circle');
};
</script>
</div>
<div class="slot" id="slot2">
<script type='text/javascript'>
function draw() {
console.log('Here we do something totally different and draw a rectangle');
};
</script>
</div>
</body>
</html>
Unfortunately I don't know how to call the draw function of the selected div "d". Right now it only calls the last defined draw function.
Mind you that I can not combine the different draw methods into one which would get a parameter like shape handed in. The draw methods will be totally independent from each other.
780
Why are you defining scripts in the divs?
Do your logic all in one script block:
<head>
<script language="javascript" type="text/javascript" src="jquery-1.8.2.js"></script>
</head>
<body>
<script type='text/javascript'>
$( document ).ready( function() {
// Draw all slots
$('div.slot').each(function(i, d) {
console.log('slot found: ' + d.id);
// d.draw() does not work
draw();
});
});
function draw(behavior) {
console.log(behavior);
}
</script>
<div class="slot" id="slot1" data-behavior="drew 1">
</div>
<div class="slot" id="slot2" data-behavior="drew 2">
</div>
</body>
</html>
If you're looking to do something more complicated, you should consider building an object oriented javascript application, with each block's functionality derived from a class "slot".
https://developer.mozilla.org/en-US/docs/JavaScript/Introduction_to_Object-Oriented_JavaScript
127
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