How to remove array element?

How to remove array element?

My arry is :

var arr = new Array();

arr.push([1,2]);
arr.push([2,2]);
arr.push([3,3]);

I want to remove no 2 element so i tried following methods

arr.remove([2,2]); // not working

i tried to get index of element but that also did not work

arr.indexOf([2,2]);