javascript-patterns/general-patterns/single-var-pattern.html at master · cyberpython/javascript-patterns · GitHub

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<!doctype html>
<html lang="en">
<head>
<title>JavaScript Patterns</title>
<meta charset="utf-8">
</head>
<body>
<script>
/* Title: Single var Pattern
   Description: use one var statement and declare multiple variables
*/

function func() {
  var a = 1,
      b = 2,
      sum = a + b,
      myobject = {},
      i,
      j;

  // function body...
}

function updateElement() {
  var el = document.getElementById("result"),
      style = el.style;
  // do something with el and style...
}

// reference
// http://net.tutsplus.com/tutorials/javascript-ajax/the-essentials-of-writing-high-quality-javascript/
</script>
</body>
</html>