=== tests/cases/compiler/genericArrayPropertyAssignment.ts ===
function isEmpty(list: {length:number;})
>isEmpty : (list: { length: number; }) => boolean
>list : { length: number; }
>length : number
{
return list.length ===0;
>list.length ===0 : boolean
>list.length : number
>list : { length: number; }
>length : number
>0 : number
}
 
isEmpty([]); // error
>isEmpty([]) : boolean
>isEmpty : (list: { length: number; }) => boolean
>[] : undefined[]