<body> <div></div> <div></div> <div></div> <div></div> <script> var oDivArray = document.getElementsByTagName('div'); function getStyle(dom,attr){ if (window.getComputedStyle) {return window.getComputedStyle(dom,null)[attr];} else {return currentStyle(dom,null);} } </script> </body> Uncaught TypeError: Failed to execute 'getComputedStyle' on 'Window': parameter 1 is not of type 'Element'.
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