Update the displayed presentation upon changes

Author: kgryte

lib/node_modules/@stdlib/repl/presentation/bin/cli

@@ -134,8 +134,18 @@ function main() {
 
 	// Check whether to begin watching the source presentation file...
 	if ( flags.watch ) {
+		pres.on( 'change', onChange );
 		pres.watch();
 	}
+
+	/**
+	* Callback invoked upon a change to the source presentation file.
+	*
+	* @private
+	*/
+	function onChange() {
+		pres.show();
+	}
 }
 
 main();

lib/node_modules/@stdlib/repl/presentation/lib/main.js

@@ -1141,6 +1141,7 @@ setNonEnumerableReadOnly( Presentation.prototype, 'watch', function watch() {
 		// Case: event === 'change'
 		debug( 'Detected a change to the source presentation file.' );
 		self.reload();
+		self.emit( 'change' );
 	}
 
 	/**