diff --git a/CHANGELOG.md b/CHANGELOG.md
index 7458083e..2d32357f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,7 +4,7 @@
 
 <section class="release" id="unreleased">
 
-## Unreleased (2024-07-13)
+## Unreleased (2024-07-14)
 
 <section class="packages">
 
@@ -2436,6 +2436,7 @@ A total of 13 people contributed to this release. Thank you to the following con
 
 <details>
 
+-   [`1cba41b`](https://github.com/stdlib-js/stdlib/commit/1cba41b45734d186a349d7987028307144faf4a3) - **docs:** update examples _(by Athan Reines)_
 -   [`ce3ad9a`](https://github.com/stdlib-js/stdlib/commit/ce3ad9a98468829b294708ca188ec669056e58ed) - **feat:** add `keys`, `values`, and `with` methods to `array/bool` [(#2590)](https://github.com/stdlib-js/stdlib/pull/2590) _(by Jaysukh Makvana)_
 -   [`2cf1a24`](https://github.com/stdlib-js/stdlib/commit/2cf1a248120648c46ca4e5bd6535c62a6f3eba6e) - **docs:** update namespace TypeScript declarations [(#2582)](https://github.com/stdlib-js/stdlib/pull/2582) _(by stdlib-bot, Athan Reines)_
 -   [`66dce03`](https://github.com/stdlib-js/stdlib/commit/66dce034698fdbd71248cad9c7d277ac97cdf0ae) - **feat:** add boolean dtype support to `array/min-dtype` [(#2556)](https://github.com/stdlib-js/stdlib/pull/2556) _(by Jaysukh Makvana, Athan Reines)_
diff --git a/dtypes/README.md b/dtypes/README.md
index 48a12b0b..c34ad717 100644
--- a/dtypes/README.md
+++ b/dtypes/README.md
@@ -114,25 +114,18 @@ var out = dtypes( 'floating_point_and_generic' );
 <!-- eslint no-undef: "error" -->
 
 ```javascript
-var indexOf = require( '@stdlib/utils/index-of' );
+var contains = require( '@stdlib/array/base/assert/contains' ).factory;
 var dtypes = require( '@stdlib/array/dtypes' );
 
-var DTYPES = dtypes();
-
-function isdtype( str ) {
-    if ( indexOf( DTYPES, str ) === -1 ) {
-        return false;
-    }
-    return true;
-}
+var isdtype = contains( dtypes() );
 
 var bool = isdtype( 'float64' );
 // returns true
 
-bool = isdtype( 'int16' );
+bool = isdtype( 'int8' );
 // returns true
 
-bool = isdtype( 'uint8' );
+bool = isdtype( 'uint16' );
 // returns true
 
 bool = isdtype( 'beep' );
diff --git a/dtypes/examples/index.js b/dtypes/examples/index.js
index dffc9666..b1b0c01b 100644
--- a/dtypes/examples/index.js
+++ b/dtypes/examples/index.js
@@ -18,17 +18,10 @@
 
 'use strict';
 
-var indexOf = require( '@stdlib/utils/index-of' );
+var contains = require( './../../base/assert/contains' ).factory;
 var dtypes = require( './../lib' );
 
-var DTYPES = dtypes();
-
-function isdtype( str ) {
-	if ( indexOf( DTYPES, str ) === -1 ) {
-		return false;
-	}
-	return true;
-}
+var isdtype = contains( dtypes() );
 
 var bool = isdtype( 'float64' );
 console.log( bool );