From b1bb5c53b8caca4cc52a4a94488d551319082797 Mon Sep 17 00:00:00 2001
From: Neil Fraser <fraser@google.com>
Date: Wed, 27 Apr 2022 13:18:25 -0700
Subject: [PATCH] chore: Reduce number of calls to getAttribute (#6119)

* Reduce number of calls to getAttribute

~1% speedup.

* Improve comment.
---
 core/utils/svg_math.js | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/core/utils/svg_math.js b/core/utils/svg_math.js
index d761f0c7b..57efc130a 100644
--- a/core/utils/svg_math.js
+++ b/core/utils/svg_math.js
@@ -56,11 +56,14 @@ const XY_STYLE_REGEX =
 const getRelativeXY = function(element) {
   const xy = new Coordinate(0, 0);
   // First, check for x and y attributes.
-  const x = element.getAttribute('x');
+  // Checking for the existence of x/y properties is faster than getAttribute.
+  // However, x/y contains an SVGAnimatedLength object, so rely on getAttribute
+  // to get the number.
+  const x = element.x && element.getAttribute('x');
+  const y = element.y && element.getAttribute('y');
   if (x) {
     xy.x = parseInt(x, 10);
   }
-  const y = element.getAttribute('y');
   if (y) {
     xy.y = parseInt(y, 10);
   }