Array length: Difference between revisions

Content added Content deleted
Line 305: Line 305:
return x;
return x;
}, null);
}, null);
}</lang>

Alternatively, rather than scanning the entire list to simply get the final value, it might sometimes be better to test the length:

<lang JavaScript>function last(list, defaultValue) {
return list.length ?list[list.length-1] :defaultValue;
}</lang>
}</lang>