Why does the splice method return undefined when removing at a valid index position?

Question

Why does the splice method return undefined and doesn't remove the element at position 4 in the following code:

var excludedDepartmentsList = [1, 2, 3, 4, 5, 6];
var currentDepartmentId = 5;

var position = $.inArray(currentDepartmentId, excludedDepartmentsList);

if (position > -1) {
    var q = excludedDepartmentsList.splice[position, 1];
    return;
}

I have made a test here: http://jsfiddle.net/PnVEb/

Answer 1

.splice is a function and it should be called like excludedDepartmentsList.splice(position, 1) and not excludedDepartmentsList.splice[position, 1]. Note the brackets changed from [] to ().

Use () like below and it should return 5

excludedDepartmentsList.splice(position, 1)

fixed fiddle: http://jsfiddle.net/PnVEb/1/