<!DOCTYPE HTML>
<html >
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title></title>
<script type="text/javascript">
//, infos
var infos = new Array(
["A","",21,""],
["B","",23,""],
["C","",24,""],
["D","",21,""],
["E","",22,""],
["F","",21,""],
["G","",22,""],
["H","",20,""],
["I","",20,""],
["J","",20,""]
);
//
for(var i = 0;i<=infos.length;iPP) {
if(infos[i].indexOf("")>0){
if(infos[i].indexOf("")>0){
document.write([i]+":"+infos[i]+"<br/>");
}
}
}
console.log(infos[0].indexOf(""));
//
</script>
</head>
<body>
</body>
</html>
but this is why Uncaught TypeError: Cannot read property "indexOf" of undefined at 4-10.html:23
