Top > Misc > Test Object Object & Array Object
var t1 = { foo : "bar", hoge : "fuga", } document.write(t1["foo"]);
On Opera Browser, it's syntax error. On Firefox or Konqueror, it's OK.
var t2 = ["foo", "bar", "baz", ]; document.write(t2[2] + ", array length:"+ t2.length);