function order( x ) {
	var st;
	var o;

	o = x.order;
	if ( isString( o ) ) {
		return o;
	}
	// Try to infer the layout order from the strides array...
	st = x.strides;
	if ( typeof st !== 'object' || st === null ) {
		return ROW_MAJOR; // WARNING: default to row-major for ndarray-like objects lacking strides. This may or may not be accurate, and we're defaulting to row-major here based on the belief that row-major is more likely given that, e.g., JavaScript arrays are similar to C arrays (i.e., stored in row-major order).
	}
	o = strides2order( st );
	if ( o === 1 || o === 3 ) {
		return ROW_MAJOR; // for o == 3 (both row- and column-major; e.g., one-dimensional ndarrays), default to row-major
	}
	if ( o === 2 ) {
		return COLUMN_MAJOR;
	}
	// o === 0
	if ( x.shape.length === 0 ) {
		return ROW_MAJOR; // default to row-major for zero-dimensional ndarrays
	}
	// Case: mixed strides (e.g., [ 2, 3, 1 ] )
	return null;
}
Returns the layout order of a provided ndarray.

@param {ndarrayLike} x - input ndarray
@returns {(string|null)} layout order

@example
var zeros = require( '@stdlib/ndarray/zeros' );

var x = zeros( [ 3, 3, 3 ], {
    'order': 'row-major'
});

var out = order( x );
// returns 'row-major'