문자열.length
배열.length
<html> <head> <title>javascript length</title> <script type='text/javascript' src='./js/jquery/jquery-1.11.0.min.js'></script> <script type="text/javascript"> $(document).ready(function() { var str = 'A/B/C/D/E/' console.log( 'string length : ' + str.length); var strArr = new Array(); strArr = str.split('/'); console.log( 'array length : ' + strArr.length); }); </script> </head> <body></body> </html>