Add regular expression benchmark for comparison

Author: Planeshifter

lib/node_modules/@stdlib/assert/is-alphanumeric/benchmark/benchmark.js

@@ -70,3 +70,49 @@ bench( pkg+'::string', function benchmark( b ) {
 	b.pass( 'benchmark finished' );
 	b.end();
 });
+
+bench( pkg+'::regexp-single-character', function benchmark( b ) {
+	var bool;
+	var str;
+	var RE;
+	var i;
+
+	RE = /[a-zA-Z0-9]+/;
+	b.tic();
+	for ( i = 0; i < b.iterations; i++ ) {
+		str = fromCodePoint( (i%74)+48 );
+		bool = RE.test( str );
+		if ( !isBoolean( bool ) ) {
+			b.fail( 'should return a boolean' );
+		}
+	}
+	b.toc();
+	if ( !isBoolean( bool ) ) {
+		b.fail( 'should return a boolean' );
+	}
+	b.pass( 'benchmark finished' );
+	b.end();
+});
+
+bench( pkg+'::regexp-string', function benchmark( b ) {
+	var bool;
+	var str;
+	var RE;
+	var i;
+
+	RE = /[a-zA-Z0-9]+/;
+	b.tic();
+	for ( i = 0; i < b.iterations; i++ ) {
+		str = '0123456789' + fromCodePoint( (i%74)+48 );
+		bool = RE.test( str );
+		if ( !isBoolean( bool ) ) {
+			b.fail( 'should return a boolean' );
+		}
+	}
+	b.toc();
+	if ( !isBoolean( bool ) ) {
+		b.fail( 'should return a boolean' );
+	}
+	b.pass( 'benchmark finished' );
+	b.end();
+});