Only fire a change event when provided a new value

Author: kgryte

lib/node_modules/@stdlib/plot/components/svg/rug/lib/props/size/set.js

@@ -20,12 +20,14 @@ function set( size ) {
 	if ( !isNonNegativeInteger( size ) ) {
 		throw new TypeError( 'invalid value. `size` must be a nonnegative integer. Value: `' + size + '.`' );
 	}
-	debug( 'Current value: %d.', this._size );
+	if ( size !== this._size ) {
+		debug( 'Current value: %d.', this._size );
 
-	this._size = size;
-	debug( 'New Value: %d.', this._size );
+		this._size = size;
+		debug( 'New Value: %d.', this._size );
 
-	this.emit( 'change' );
+		this.emit( 'change' );
+	}
 } // end FUNCTION set()