diff --git a/base/dtype/README.md b/base/dtype/README.md
new file mode 100644
index 00000000..6cd7de15
--- /dev/null
+++ b/base/dtype/README.md
@@ -0,0 +1,147 @@
+
+
+# dtype
+
+> Return the data type of a provided [ndarray][@stdlib/ndarray/base/ctor].
+
+
+
+
+
+
+
+
+
+
+
+## Usage
+
+```javascript
+var dtype = require( '@stdlib/ndarray/base/dtype' );
+```
+
+#### dtype( x )
+
+Returns the data type of a provided [ndarray][@stdlib/ndarray/base/ctor].
+
+```javascript
+var zeros = require( '@stdlib/ndarray/zeros' );
+
+var x = zeros( [ 3, 2, 3 ], {
+ 'dtype': 'float64'
+});
+// returns
+
+var dt = dtype( x );
+// returns 'float64'
+```
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+## Examples
+
+
+
+
+
+```javascript
+var zeros = require( '@stdlib/ndarray/zeros' );
+var slice = require( '@stdlib/ndarray/slice' );
+var E = require( '@stdlib/slice/multi' );
+var S = require( '@stdlib/slice/ctor' );
+var dtype = require( '@stdlib/ndarray/base/dtype' );
+
+// Create an array:
+var x = zeros( [ 10, 10, 10, 10 ] );
+// returns
+
+// Define some slices:
+var slices = [
+ // :,:,:,:
+ E( null, null, null, null ),
+
+ // 5:10,4,2:4,::-1
+ E( S( 5, 10 ), 4, S( 2, 4 ), S( null, null, -1 ) ),
+
+ // :,:,2,:
+ E( null, null, 2, null ),
+
+ // 1,2,3,:
+ E( 1, 2, 3, null ),
+
+ // 1,3,::2,4::2
+ E( 1, 3, S( null, null, 2 ), S( 4, null, 2 ) )
+];
+
+// Determine the data type for each slice...
+var s;
+var i;
+for ( i = 0; i < slices.length; i++ ) {
+ s = slice( x, slices[ i ] );
+ console.log( '%s => %s', s.dtype, dtype( s ) );
+}
+```
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+[@stdlib/ndarray/base/ctor]: https://github.com/stdlib-js/ndarray/tree/main/base/ctor
+
+
+
+
diff --git a/base/dtype/benchmark/benchmark.js b/base/dtype/benchmark/benchmark.js
new file mode 100644
index 00000000..41849e17
--- /dev/null
+++ b/base/dtype/benchmark/benchmark.js
@@ -0,0 +1,57 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2023 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var bench = require( '@stdlib/bench' );
+var isString = require( '@stdlib/assert/is-string' ).isPrimitive;
+var typedarray = require( '@stdlib/array/typed' );
+var ndarray = require( './../../../ctor' );
+var pkg = require( './../package.json' ).name;
+var dtype = require( './../lib' );
+
+
+// MAIN //
+
+bench( pkg, function benchmark( b ) {
+ var values;
+ var dt;
+ var i;
+
+ values = [
+ ndarray( 'float64', typedarray( 20000, 'float64' ), [ 10, 10, 10, 1 ], [ 1000, 100, 10, 1 ], 100, 'row-major' ),
+ ndarray( 'int32', typedarray( 20000, 'int32' ), [ 5, 5, 5, 1, 1 ], [ 125, 25, 5, 1, 1 ], 50, 'row-major' ),
+ ndarray( 'uint8', typedarray( 20000, 'uint8' ), [ 3, 4, 5 ], [ 20, 5, 1 ], 72, 'row-major' )
+ ];
+
+ b.tic();
+ for ( i = 0; i < b.iterations; i++ ) {
+ dt = dtype( values[ i%values.length ] );
+ if ( typeof dt !== 'string' ) {
+ b.fail( 'should return a string' );
+ }
+ }
+ b.toc();
+ if ( !isString( dt ) ) {
+ b.fail( 'should return a string' );
+ }
+ b.pass( 'benchmark finished' );
+ b.end();
+});
diff --git a/base/dtype/docs/repl.txt b/base/dtype/docs/repl.txt
new file mode 100644
index 00000000..0a73b9ec
--- /dev/null
+++ b/base/dtype/docs/repl.txt
@@ -0,0 +1,23 @@
+
+{{alias}}( x )
+ Returns the data type of a provided ndarray.
+
+ Parameters
+ ----------
+ x: ndarray
+ Input ndarray.
+
+ Returns
+ -------
+ dt: string
+ Data type.
+
+ Examples
+ --------
+ > var opts = { 'dtype': 'float64' };
+ > var dt = {{alias}}( {{alias:@stdlib/ndarray/zeros}}( [ 3, 3, 3 ], opts ) )
+ 'float64'
+
+ See Also
+ --------
+
diff --git a/base/dtype/docs/types/index.d.ts b/base/dtype/docs/types/index.d.ts
new file mode 100644
index 00000000..df1b26e2
--- /dev/null
+++ b/base/dtype/docs/types/index.d.ts
@@ -0,0 +1,46 @@
+/*
+* @license Apache-2.0
+*
+* Copyright (c) 2023 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+// TypeScript Version: 4.1
+
+///
+
+import { ndarray, DataType } from '@stdlib/types/ndarray';
+
+/**
+* Returns the data type of a provided ndarray.
+*
+* @param x - input ndarray
+* @returns data type
+*
+* @example
+* var zeros = require( `@stdlib/ndarray/zeros` );
+*
+* var x = zeros( [ 3, 3, 3 ], {
+* 'dtype': 'float64'
+* });
+*
+* var dt = dtype( x );
+* // returns 'float64'
+*/
+declare function dtype( x: ndarray ): DataType;
+
+
+// EXPORTS //
+
+export = dtype;
diff --git a/base/dtype/docs/types/test.ts b/base/dtype/docs/types/test.ts
new file mode 100644
index 00000000..57bf954f
--- /dev/null
+++ b/base/dtype/docs/types/test.ts
@@ -0,0 +1,47 @@
+/*
+* @license Apache-2.0
+*
+* Copyright (c) 2023 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+import zeros = require( './../../../../zeros' );
+import dtype = require( './index' );
+
+
+// TESTS //
+
+// The function returns a data type...
+{
+ dtype( zeros( [ 3, 2, 1 ] ) ); // $ExpectType DataType
+}
+
+// The compiler throws an error if the function is provided a value other than an ndarray...
+{
+ dtype( '5' ); // $ExpectError
+ dtype( 5 ); // $ExpectError
+ dtype( true ); // $ExpectError
+ dtype( false ); // $ExpectError
+ dtype( null ); // $ExpectError
+ dtype( undefined ); // $ExpectError
+ dtype( [ '1', '2' ] ); // $ExpectError
+ dtype( {} ); // $ExpectError
+ dtype( ( x: number ): number => x ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided an unsupported number of arguments...
+{
+ dtype(); // $ExpectError
+ dtype( zeros( [ 2, 2 ] ), {} ); // $ExpectError
+}
diff --git a/base/dtype/examples/index.js b/base/dtype/examples/index.js
new file mode 100644
index 00000000..7e060286
--- /dev/null
+++ b/base/dtype/examples/index.js
@@ -0,0 +1,57 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2023 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+/* eslint-disable new-cap */
+
+'use strict';
+
+var zeros = require( './../../../zeros' );
+var slice = require( './../../../slice' );
+var E = require( '@stdlib/slice/multi' );
+var S = require( '@stdlib/slice/ctor' );
+var dtype = require( './../lib' );
+
+// Create an array:
+var x = zeros( [ 10, 10, 10, 10 ] );
+// returns
+
+// Define some slices:
+var slices = [
+ // :,:,:,:
+ E( null, null, null, null ),
+
+ // 5:10,4,2:4,::-1
+ E( S( 5, 10 ), 4, S( 2, 4 ), S( null, null, -1 ) ),
+
+ // :,:,2,:
+ E( null, null, 2, null ),
+
+ // 1,2,3,:
+ E( 1, 2, 3, null ),
+
+ // 1,3,::2,4::2
+ E( 1, 3, S( null, null, 2 ), S( 4, null, 2 ) )
+];
+
+// Determine the data type of each slice...
+var s;
+var i;
+for ( i = 0; i < slices.length; i++ ) {
+ s = slice( x, slices[ i ] );
+ console.log( '%s => %s', s.dtype, dtype( s ) );
+}
diff --git a/base/dtype/lib/index.js b/base/dtype/lib/index.js
new file mode 100644
index 00000000..6e501d3d
--- /dev/null
+++ b/base/dtype/lib/index.js
@@ -0,0 +1,45 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2023 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+/**
+* Return the data type of a provided ndarray.
+*
+* @module @stdlib/ndarray/base/dtype
+*
+* @example
+* var zeros = require( '@stdlib/ndarray/zeros' );
+* var dtype = require( '@stdlib/ndarray/base/dtype' );
+*
+* var x = zeros( [ 3, 3, 3 ], {
+* 'dtype': 'float64'
+* });
+*
+* var dt = dtype( x );
+* // returns 'float64'
+*/
+
+// MODULES //
+
+var main = require( './main.js' );
+
+
+// EXPORTS //
+
+module.exports = main;
diff --git a/base/dtype/lib/main.js b/base/dtype/lib/main.js
new file mode 100644
index 00000000..a92cfdd2
--- /dev/null
+++ b/base/dtype/lib/main.js
@@ -0,0 +1,46 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2023 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MAIN //
+
+/**
+* Returns the data type of a provided ndarray.
+*
+* @param {ndarrayLike} x - input ndarray
+* @returns {string} data type
+*
+* @example
+* var zeros = require( '@stdlib/ndarray/zeros' );
+*
+* var x = zeros( [ 3, 3, 3 ], {
+* 'dtype': 'float64'
+* });
+*
+* var dt = dtype( x );
+* // returns 'float64'
+*/
+function dtype( x ) {
+ return x.dtype;
+}
+
+
+// EXPORTS //
+
+module.exports = dtype;
diff --git a/base/dtype/package.json b/base/dtype/package.json
new file mode 100644
index 00000000..c44c2cf7
--- /dev/null
+++ b/base/dtype/package.json
@@ -0,0 +1,70 @@
+{
+ "name": "@stdlib/ndarray/base/dtype",
+ "version": "0.0.0",
+ "description": "Return the data type of a provided ndarray.",
+ "license": "Apache-2.0",
+ "author": {
+ "name": "The Stdlib Authors",
+ "url": "https://github.com/stdlib-js/stdlib/graphs/contributors"
+ },
+ "contributors": [
+ {
+ "name": "The Stdlib Authors",
+ "url": "https://github.com/stdlib-js/stdlib/graphs/contributors"
+ }
+ ],
+ "main": "./lib",
+ "directories": {
+ "benchmark": "./benchmark",
+ "doc": "./docs",
+ "example": "./examples",
+ "lib": "./lib",
+ "test": "./test"
+ },
+ "types": "./docs/types",
+ "scripts": {},
+ "homepage": "https://github.com/stdlib-js/stdlib",
+ "repository": {
+ "type": "git",
+ "url": "git://github.com/stdlib-js/stdlib.git"
+ },
+ "bugs": {
+ "url": "https://github.com/stdlib-js/stdlib/issues"
+ },
+ "dependencies": {},
+ "devDependencies": {},
+ "engines": {
+ "node": ">=0.10.0",
+ "npm": ">2.7.0"
+ },
+ "os": [
+ "aix",
+ "darwin",
+ "freebsd",
+ "linux",
+ "macos",
+ "openbsd",
+ "sunos",
+ "win32",
+ "windows"
+ ],
+ "keywords": [
+ "stdlib",
+ "stdtypes",
+ "types",
+ "base",
+ "ndarray",
+ "data type",
+ "dtype",
+ "type",
+ "memory",
+ "layout",
+ "multidimensional",
+ "array",
+ "utilities",
+ "utility",
+ "utils",
+ "util"
+ ],
+ "__stdlib__": {}
+}
diff --git a/base/dtype/test/test.js b/base/dtype/test/test.js
new file mode 100644
index 00000000..18b51df6
--- /dev/null
+++ b/base/dtype/test/test.js
@@ -0,0 +1,120 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2023 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var tape = require( 'tape' );
+var zeros = require( './../../../zeros' );
+var dtype = require( './../lib' );
+
+
+// TESTS //
+
+tape( 'main export is a function', function test( t ) {
+ t.ok( true, __filename );
+ t.strictEqual( typeof dtype, 'function', 'main export is a function' );
+ t.end();
+});
+
+tape( 'the function returns the data type of a provided ndarray', function test( t ) {
+ var expected;
+ var values;
+ var actual;
+ var i;
+
+ values = [
+ zeros( [], {
+ 'dtype': 'float64'
+ }),
+ zeros( [ 3, 3, 3 ], {
+ 'dtype': 'float32'
+ }),
+ zeros( [ 1, 1 ], {
+ 'dtype': 'int32'
+ }),
+ zeros( [ 3, 3, 0, 3 ], {
+ 'dtype': 'uint32'
+ }),
+ zeros( [ 1, 2, 3, 4 ], {
+ 'dtype': 'int8'
+ }),
+ zeros( [ 5 ], {
+ 'dtype': 'uint8'
+ })
+ ];
+
+ expected = [
+ 'float64',
+ 'float32',
+ 'int32',
+ 'uint32',
+ 'int8',
+ 'uint8'
+ ];
+
+ for ( i = 0; i < values.length; i++ ) {
+ actual = dtype( values[ i ] );
+ t.strictEqual( actual, expected[ i ], 'returns expected value' );
+ }
+ t.end();
+});
+
+tape( 'the function accepts minimal ndarray-like objects (dtype)', function test( t ) {
+ var expected;
+ var values;
+ var actual;
+ var i;
+
+ values = [
+ {
+ 'dtype': 'float64'
+ },
+ {
+ 'dtype': 'float32'
+ },
+ {
+ 'dtype': 'int32'
+ },
+ {
+ 'dtype': 'uint32'
+ },
+ {
+ 'dtype': 'int8'
+ },
+ {
+ 'dtype': 'uint8'
+ }
+ ];
+
+ expected = [
+ 'float64',
+ 'float32',
+ 'int32',
+ 'uint32',
+ 'int8',
+ 'uint8'
+ ];
+
+ for ( i = 0; i < values.length; i++ ) {
+ actual = dtype( values[ i ] );
+ t.strictEqual( actual, expected[ i ], 'returns expected value' );
+ }
+ t.end();
+});
diff --git a/base/lib/index.js b/base/lib/index.js
index 4eca8658..2785e426 100644
--- a/base/lib/index.js
+++ b/base/lib/index.js
@@ -175,6 +175,15 @@ setReadOnly( ns, 'clampIndex', require( './../../base/clamp-index' ) );
*/
setReadOnly( ns, 'ndarray', require( './../../base/ctor' ) );
+/**
+* @name dtype
+* @memberof ns
+* @readonly
+* @type {Function}
+* @see {@link module:@stdlib/ndarray/base/dtype}
+*/
+setReadOnly( ns, 'dtype', require( './../../base/dtype' ) );
+
/**
* @name dtypeChar
* @memberof ns
diff --git a/base/offset/lib/main.js b/base/offset/lib/main.js
index 49d7ce9b..f13309b5 100644
--- a/base/offset/lib/main.js
+++ b/base/offset/lib/main.js
@@ -26,7 +26,7 @@ var strides2offset = require( './../../../base/strides2offset' );
// MAIN //
/**
-* Return the index offset specifying the underlying buffer index of the first iterated ndarray element.
+* Returns the index offset specifying the underlying buffer index of the first iterated ndarray element.
*
* @param {ndarrayLike} x - input ndarray
* @returns {NonNegativeInteger} index offset
diff --git a/dist/index.js b/dist/index.js
index e2aefdc5..c964ae77 100644
--- a/dist/index.js
+++ b/dist/index.js
@@ -1,4 +1,4 @@
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