fix: handle scenario where a core dimension is zero

---
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
  - task: lint_javascript_examples
    status: na
  - task: lint_javascript_tests
    status: na
  - task: lint_javascript_benchmarks
    status: na
  - task: lint_python
    status: na
  - task: lint_r
    status: na
  - task: lint_c_src
    status: na
  - task: lint_c_examples
    status: na
  - task: lint_c_benchmarks
    status: na
  - task: lint_c_tests_fixtures
    status: na
  - task: lint_shell
    status: na
  - task: lint_typescript_declarations
    status: na
  - task: lint_typescript_tests
    status: na
  - task: lint_license_headers
    status: passed
---

Author: kgryte

lib/node_modules/@stdlib/ndarray/base/unary-reduce-subarray/lib/main.js

@@ -25,6 +25,7 @@ var normalizeIndices = require( '@stdlib/ndarray/base/to-unique-normalized-indic
 var indicesComplement = require( '@stdlib/array/base/indices-complement' );
 var takeIndexed2 = require( '@stdlib/array/base/take-indexed2' );
 var iterationOrder = require( '@stdlib/ndarray/base/iteration-order' );
+var numel = require( '@stdlib/ndarray/base/numel' );
 var join = require( '@stdlib/array/base/join' );
 var format = require( '@stdlib/string/format' );
 var initializeViews = require( './initialize_array_views.js' );
@@ -262,7 +263,7 @@ function unaryReduceSubarray( fcn, arrays, dims, options ) { // eslint-disable-l
 		}
 	}
 	// Check whether we were provided empty ndarrays...
-	if ( len === 0 ) {
+	if ( len === 0 || numel( shc ) === 0 ) {
 		return;
 	}
 	// Initialize ndarray-like objects for representing sub-array views...