refactor: avoid duplicate access

Signed-off-by: Athan <[email protected]>

Author: kgryte

lib/node_modules/@stdlib/blas/ext/base/gnannsumkbn/lib/accessors.js

@@ -85,12 +85,13 @@ function gnannsumkbn( N, x, strideX, offsetX, out, strideOut, offsetOut ) {
 	sum = 0.0;
 	ix = offsetX;
 	if ( strideX === 0 ) {
-		if ( isnan( xget( xbuf, ix ) ) ) {
+		v = xget( xbuf, ix );
+		if ( isnan( v ) ) {
 			oset( obuf, offsetOut, sum );
 			oset( obuf, offsetOut+strideOut, 0 );
 			return out;
 		}
-		oset( obuf, offsetOut, xget( xbuf, ix ) * N );
+		oset( obuf, offsetOut, v * N );
 		oset( obuf, offsetOut+strideOut, N );
 		return out;
 	}