refactor: apply suggestions from code review

---
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: passed
  - task: lint_typescript_tests
    status: na
  - task: lint_license_headers
    status: passed
---

Author: headlessNode

lib/node_modules/@stdlib/ndarray/concat1d/lib/assign.js

@@ -72,6 +72,8 @@ function assign() {
 	var nargs;
 	var args;
 	var arrs;
+	var isnd;
+	var dims;
 	var ord;
 	var out;
 	var dt;
@@ -91,26 +93,33 @@ function assign() {
 		}
 	}
 	if ( nargs === 2 ) {
-		if ( isArrayLikeObject( arguments[ 0 ] ) ) {
+		if (
+			isArrayLikeObject( arguments[ 0 ] ) &&
+			!isndarrayLike( arguments[ 0 ] )
+		) {
 			args = arguments[ 0 ];
 		} else {
-			args = [];
-			args.push( arguments[ 0 ] );
+			args = [ arguments[ 0 ] ];
 		}
 	}
 	out = arguments[ nargs - 1 ];
 	if ( !isndarrayLike( out ) || ndims( out ) !== 1 ) {
 		throw new Error( format( 'invalid argument. Output argument must be a one-dimensional ndarray. Value: `%s`.', out ) );
 	}
-	// Resolve the `dtype` and `order` of input ndarrays:
+	isnd = [];
+	dims = [];
 	arrs = [];
 	for ( i = 0; i < args.length; i++ ) {
-		if ( isndarrayLike( args[ i ] ) ) {
+		isnd.push( isndarrayLike( args[ i ] ) );
+		if ( isnd[ i ] ) {
 			d = ndims( args[ i ] );
 			if ( d > 1 ) {
 				throw new RangeError( format( 'invalid argument. The function must be provided a one-dimensional ndarray or a zero-dimensional ndarray. Value: `%s`.', d ) );
 			}
+			dims.push( d );
 			arrs.push( args[ i ] );
+		} else {
+			dims.push( -1 );
 		}
 	}
 	if ( arrs.length >= 1 ) {
@@ -122,8 +131,8 @@ function assign() {
 	}
 	// Broadcast scalar or 0d ndarray inputs:
 	for ( i = 0; i < args.length; i++ ) {
-		if ( isndarrayLike( args[ i ] ) ) {
-			if ( ndims( args[ i ] ) === 0 ) {
+		if ( isnd[ i ] ) {
+			if ( dims[ i ] === 0 ) {
 				args[ i ] = broadcastArray( args[ i ], [ 1 ] );
 			}
 		} else if ( !dt && !ord ) {

lib/node_modules/@stdlib/ndarray/concat1d/lib/main.js

@@ -65,6 +65,8 @@ function concat1d() {
 	var nargs;
 	var args;
 	var arrs;
+	var isnd;
+	var dims;
 	var ord;
 	var dt;
 	var i;
@@ -83,22 +85,29 @@ function concat1d() {
 		}
 	}
 	if ( nargs === 1 ) {
-		if ( isArrayLikeObject( arguments[ 0 ] ) ) {
+		if (
+			isArrayLikeObject( arguments[ 0 ] ) &&
+			!isndarrayLike( arguments[ 0 ] )
+		) {
 			args = arguments[ 0 ];
 		} else {
-			args = [];
-			args.push( arguments[ 0 ] );
+			args = [ arguments[ 0 ] ];
 		}
 	}
-	// Resolve the `dtype` and `order` of input ndarrays:
+	isnd = [];
+	dims = [];
 	arrs = [];
 	for ( i = 0; i < args.length; i++ ) {
-		if ( isndarrayLike( args[ i ] ) ) {
+		isnd.push( isndarrayLike( args[ i ] ) );
+		if ( isnd[ i ] ) {
 			d = ndims( args[ i ] );
 			if ( d > 1 ) {
 				throw new RangeError( format( 'invalid argument. The function must be provided a one-dimensional ndarray or a zero-dimensional ndarray. Value: `%s`.', d ) );
 			}
+			dims.push( d );
 			arrs.push( args[ i ] );
+		} else {
+			dims.push( -1 );
 		}
 	}
 	if ( arrs.length >= 1 ) {
@@ -110,8 +119,8 @@ function concat1d() {
 	}
 	// Broadcast scalar or 0d ndarray inputs:
 	for ( i = 0; i < args.length; i++ ) {
-		if ( isndarrayLike( args[ i ] ) ) {
-			if ( ndims( args[ i ] ) === 0 ) {
+		if ( isnd[ i ] ) {
+			if ( dims[ i ] === 0 ) {
 				args[ i ] = broadcastArray( args[ i ], [ 1 ] );
 			}
 		} else {