<link rel="stylesheet" type="text/css" href="plugin/codemirror/lib/codemirror.css"> <body> <textarea class="codemirror-textarea"></textarea> </body> <script> $(document).ready(function(){ var codeText = $(".codemirror-textarea")[0]; var editor = CodeMirror.fromTextArea(codeText, { lineNumbers : true }); }); </script> <script type="text/javascript" src="plugin/codemirror/lib/codemirror.js"></script>