QUnit.test( 'removeFrom', function( assert ) { let removeFrom = fizzyUIUtils.removeFrom; let ary = [ 0, 1, 2, 3, 4, 5, 6 ]; removeFrom( ary, 2 ); let ary2 = [ 0, 1, 3, 4, 5, 6 ]; assert.deepEqual( ary, ary2, '2 removed' ); removeFrom( ary, 8 ); assert.deepEqual( ary, ary2, '8 not removed' ); } );