Facebook Javascript (FBJS) Code Sample: Hello World!
Following is a FBJS code sample to create a “Hello World!” program using Javascript with the Facebook specifications.
This will display a link ‘Hello World!’ that will change the color and the background randomly when clicked.
<a href="#" onclick="do_colors(this); return false">Hello World!</a>
<script>
<!--
function random_int(lo, hi) {
return Math.floor((Math.random() * (hi - lo)) + lo)
}
function do_colors(obj) {
var r = random_int(0, 255), b = random_int(0, 255), g = random_int(0, 255);
obj.setStyle({background: 'rgb('+[r, g, b].join(',')+')',
color: 'rgb('+[r<129?r+128:r-128, g<129?g+128:g-128, b<129?b+128:b-128].join(',')+')'});
}
//-->
</script>
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