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bootstrap.html
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<html>
<head>
<style type="text/css">
html, body {
height: 100%;
margin: 0;
}
div#wrapper {
min-height: 100%;
}
div#wrapper.red{
background-color: #f00;
}
div#wrapper.green{
background-color: #0f0;
}
div#wrapper.blue{
background-color: #00f;
}
</style>
</head>
<body>
<div id="wrapper" class="blue"></div>
<span><a class="colorLink" name="red">Red</a></span>
<span><a class="colorLink" name="green">Green</a></span>
<span><a class="colorLink" name="blue">Blue</a></span>
<script language="javascript">
var wrapper = document.getElementById("wrapper");
var sendToken = undefined;
[].forEach.call(
document.getElementsByClassName("colorLink"),
function(e) {
e.addEventListener("click", function(){
if(sendToken != undefined) {
clearInterval(sendToken);
sendToken = undefined;
}
wrapper.className = e.name
})
});
var d = 2;
wrapper.addEventListener("click", function(){
if(sendToken == undefined){
sendToken = setInterval(function(){
d = next()
if(d != undefined){
switch(d){
case 0:
wrapper.className = "red";
break;
case 1:
wrapper.className = "green";
break;
case 2:
wrapper.className = "blue";
break;
}
}
}, interval);
}else{
clearInterval(sendToken);
sendToken = undefined;
}
});
function toBinaryArray(str){
var PADDING = "00000000";
var resultArray = [];
for (var i = 0; i < str.length; i++) {
var compact = str.charCodeAt(i).toString(2);
var padded = Array(8- compact.length+1).join("0") + compact
resultArray.push(padded.split(''));
}
return res = resultArray.reduce(function(a, b) {
return a.concat(b);
}).map(function(d){return parseInt(d,10)});
}
function dataProvider(arr){
var paddedArr = arr.map(function(el){
return [el, 2];
}).reduce(function(a, b) {
return a.concat(b);
});
return function(){
var f = paddedArr.shift();
return f;
}
}
var interval = 200;
var input = "Hello, World!"
var next = dataProvider(toBinaryArray(input));
</script>
</body>
</html>