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<!DOCTYPE html>
<html>
<head>
<meta charset=utf-8 />
<title>JS Bin</title>
</head>
<body>
</body>
</html>
 
var caseX = [];
var caseY = [];
var id = "img1-0";
document.body.innerHTML += /^img(\d+)-(\d+)$/.exec(id);
for (i = 0; i < caseX.length; i++)
  document.body.innerHTML += caseX[i] + " - " + caseY[i] + "<br />";
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anonymouspro
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