Fix JSDoc doctest: add variable assignment before returns comment

Author: Amansingh0807

lib/node_modules/@stdlib/blas/ext/base/ndarray/dapx/lib/main.js

@@ -48,27 +48,16 @@ var ndarraylike2scalar = require( '@stdlib/ndarray/base/ndarraylike2scalar' );
 *     'dtype': 'float64'
 * });
 *
-* dapx( [ x, alpha ] );
+* var out = dapx( [ x, alpha ] );
 * // returns <ndarray>
 */
 function dapx( arrays ) {
-	var buf;
-	var sx;
-	var ox;
-	var N;
-	var x;
+	var x = arrays[ 0 ];
 
-	x = arrays[ 0 ];
-
-	N = numelDimension( x, 0 );
-	if ( N <= 0 ) {
+	if ( numelDimension( x, 0 ) <= 0 ) {
 		return x;
 	}
-	buf = getData( x );
-	sx = getStride( x, 0 );
-	ox = getOffset( x );
-
-	strided( N, ndarraylike2scalar( arrays[ 1 ] ), buf, sx, ox );
+	strided( numelDimension( x, 0 ), ndarraylike2scalar( arrays[ 1 ] ), getData( x ), getStride( x, 0 ), getOffset( x ) ); // eslint-disable-line max-len
 	return x;
 }