refactor: use alias to reduce visual noise

---
type: pre_commit_static_analysis_report
description: Results of running static analysis checks when committing changes.
report:
  - task: lint_filenames
    status: passed
  - task: lint_editorconfig
    status: passed
  - task: lint_markdown
    status: na
  - task: lint_package_json
    status: na
  - task: lint_repl_help
    status: na
  - task: lint_javascript_src
    status: passed
  - task: lint_javascript_cli
    status: na
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    status: na
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    status: na
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    status: na
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    status: na
  - task: lint_c_src
    status: na
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    status: na
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    status: na
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    status: na
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  - task: lint_typescript_declarations
    status: na
  - task: lint_typescript_tests
    status: na
  - task: lint_license_headers
    status: passed
---

Author: kgryte

lib/node_modules/@stdlib/blas/ext/base/dnannsumkbn/lib/ndarray.js

@@ -59,26 +59,28 @@ function dnannsumkbn( N, x, strideX, offsetX, out, strideOut, offsetOut ) {
 	var sum;
 	var flg;
 	var ix;
+	var io;
 	var v;
 	var t;
 	var c;
 	var n;
 	var i;
 
+	io = offsetOut;
 	if ( N <= 0 ) {
-		out[ offsetOut ] = 0.0;
-		out[ offsetOut+strideOut ] = 0;
+		out[ io ] = 0.0;
+		out[ io+strideOut ] = 0;
 		return out;
 	}
 	ix = offsetX;
 	if ( strideX === 0 ) {
 		if ( isnan( x[ ix ] ) ) {
-			out[ offsetOut ] = 0.0;
-			out[ offsetOut+strideOut ] = 0;
+			out[ io ] = 0.0;
+			out[ io+strideOut ] = 0;
 			return out;
 		}
-		out[ offsetOut ] = x[ ix ] * N;
-		out[ offsetOut+strideOut ] = N;
+		out[ io ] = x[ ix ] * N;
+		out[ io+strideOut ] = N;
 		return out;
 	}
 	// Find the first non-NaN element...
@@ -90,8 +92,8 @@ function dnannsumkbn( N, x, strideX, offsetX, out, strideOut, offsetOut ) {
 		ix += strideX;
 	}
 	if ( i === N ) {
-		out[ offsetOut ] = 0.0;
-		out[ offsetOut+strideOut ] = 0;
+		out[ io ] = 0.0;
+		out[ io+strideOut ] = 0;
 		return out;
 	}
 	n = 1;
@@ -131,8 +133,8 @@ function dnannsumkbn( N, x, strideX, offsetX, out, strideOut, offsetOut ) {
 		}
 		ix += strideX;
 	}
-	out[ offsetOut ] = ( flg ) ? sum+c : sum;
-	out[ offsetOut+strideOut ] = n;
+	out[ io ] = ( flg ) ? sum+c : sum;
+	out[ io+strideOut ] = n;
 	return out;
 }