// source http://jsbin.com/repehi // a weak attempt at implementing a barebones category theory library in javascript.

<!DOCTYPE html>
<html>
<head>
<script src="https://code.jquery.com/jquery-2.1.0.min.js"></script>
  <meta charset="utf-8">
  <title>JS Bin</title>
<script src="https://d3js.org/d3.v3.min.js"></script>
</head>
<body>

var arrow = function (dom,codom) {
  var id;
  var domain = dom;
  var codomain = codom;
  var type;
  return {'id':id, 'domain':domain, 'codomain':codomain, 'type':type};
};

var type = function () {
  var id;
  var name;
};

var compose = function(one,two) {
  var three;
  if (one.codomain == two.domain) {
    return three;
  }
  else {
    return 'error';
  }
};
</script>

var arrow = function (dom,codom) {
  var id;
  var domain = dom;
  var codomain = codom;
  var type;
  return {'id':id, 'domain':domain, 'codomain':codomain, 'type':type};
};

var type = function () {
  var id;
  var name;
};

var compose = function(one,two) {
  var three;
  if (one.codomain == two.domain) {
    return three;
  }
  else {
    return 'error';
  }
};

</script></body>
</html>

Modified http://code.jquery.com/jquery-2.1.0.min.js to a secure url

Modified http://d3js.org/d3.v3.min.js to a secure url

https://code.jquery.com/jquery-2.1.0.min.js

https://d3js.org/d3.v3.min.js