diff --git a/lib/node_modules/@stdlib/utils/type-of/lib/main.js b/lib/node_modules/@stdlib/utils/type-of/lib/main.js
index 4a17563d2ccb..f305cd2e1141 100644
--- a/lib/node_modules/@stdlib/utils/type-of/lib/main.js
+++ b/lib/node_modules/@stdlib/utils/type-of/lib/main.js
@@ -21,6 +21,7 @@
 // MODULES //
 
 var ctorName = require( '@stdlib/utils/constructor-name' );
+var lowercase = require( '@stdlib/string/base/lowercase' );
 
 
 // NOTES //
@@ -53,6 +54,14 @@ var ctorName = require( '@stdlib/utils/constructor-name' );
 *
 * @param {*} v - input value
 * @returns {string} string indicating the value's type
+*
+* @example
+* var str = typeOf( 'a' );
+* // returns 'string'
+*
+* @example
+* var str = typeOf( 5 );
+* // returns 'number'
 */
 function typeOf( v ) {
 	var type;
@@ -65,7 +74,7 @@ function typeOf( v ) {
 
 	// If the `typeof` operator returned something other than `object`, we are done. Otherwise, we need to check for an internal class name or search for a constructor.
 	if ( type === 'object' ) {
-		return ctorName( v ).toLowerCase();
+		return lowercase( ctorName( v ) );
 	}
 	return type;
 }
diff --git a/lib/node_modules/@stdlib/utils/type-of/lib/polyfill.js b/lib/node_modules/@stdlib/utils/type-of/lib/polyfill.js
index 856e26e438af..f8b46020cab8 100644
--- a/lib/node_modules/@stdlib/utils/type-of/lib/polyfill.js
+++ b/lib/node_modules/@stdlib/utils/type-of/lib/polyfill.js
@@ -21,6 +21,7 @@
 // MODULES //
 
 var ctorName = require( '@stdlib/utils/constructor-name' );
+var lowercase = require( '@stdlib/string/base/lowercase' );
 
 
 // MAIN //
@@ -30,9 +31,17 @@ var ctorName = require( '@stdlib/utils/constructor-name' );
 *
 * @param {*} v - input value
 * @returns {string} string indicating the value's type
+*
+* @example
+* var str = typeOf( 'a' );
+* // returns 'string'
+*
+* @example
+* var str = typeOf( 5 );
+* // returns 'number'
 */
 function typeOf( v ) {
-	return ctorName( v ).toLowerCase();
+	return lowercase( ctorName( v ) );
 }