perf: optimize performance by removing spread array (#89)

antvis · Jul 20, 2022 · fe83042 · fe83042
1 parent 3bad6c4
commit fe83042
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Showing 3 changed files with 3 additions and 3 deletions.
diff --git a/src/path/util/segment-arc-factory.ts b/src/path/util/segment-arc-factory.ts
@@ -153,7 +153,7 @@ export function segmentArcFactory(
     t = j / sampleSize;
 
     ({ x, y } = getPointAtArcSegmentLength(X1, Y1, RX, RY, angle, LAF, SF, X2, Y2, t));
-    POINTS = [...POINTS, { x, y }];
+    POINTS = POINTS.concat({ x, y });
     LENGTH += distanceSquareRoot(cur, [x, y]);
     cur = [x, y];
 

diff --git a/src/path/util/segment-cubic-factory.ts b/src/path/util/segment-cubic-factory.ts
@@ -58,7 +58,7 @@ export function segmentCubicFactory(
     t = j / sampleSize;
 
     ({ x, y } = getPointAtCubicSegmentLength(x1, y1, c1x, c1y, c2x, c2y, x2, y2, t));
-    POINTS = [...POINTS, { x, y }];
+    POINTS = POINTS.concat({ x, y });
     LENGTH += distanceSquareRoot(cur, [x, y]);
     cur = [x, y];
 

diff --git a/src/path/util/segment-quad-factory.ts b/src/path/util/segment-quad-factory.ts
@@ -55,7 +55,7 @@ export function segmentQuadFactory(
     t = j / sampleSize;
 
     ({ x, y } = getPointAtQuadSegmentLength(x1, y1, qx, qy, x2, y2, t));
-    POINTS = [...POINTS, { x, y }];
+    POINTS = POINTS.concat({ x, y });
     LENGTH += distanceSquareRoot(cur, [x, y]);
     cur = [x, y];