Why is this global variable not recognised in javascript function? -

Why is this global variable not recognised in javascript function? -

despite excessive googling don't why function dosomething nil in situation below. thought why doesn't work?

many thanks, gordon

var arrattend=new object(); arrattend["blob"]='hello'; function dosomething() { alert (arrattend["blob"]); }

it's typo, should utilize new object (capital o). or utilize object literal:

var arrattend = {blob: 'hello'}; function dosomething() { alert (arrattend.blob); }

javascript variables global