Merge pull request #35 from LottieFiles/fix/accept-nullish-value-in-o…

…ut-tangents fix: accept nullish ti/to
LottieFiles · Jul 21, 2023 · a977c78 · a977c78
2 parents 091c5ea + 6e8b023
commit a977c78
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diff --git a/.changeset/rude-parents-repair.md b/.changeset/rude-parents-repair.md
@@ -0,0 +1,5 @@
+---
+'@lottiefiles/lottie-js': patch
+---
+
+Fix crash when parsing `null` value tangents
diff --git a/src/timeline/key-frame.ts b/src/timeline/key-frame.ts
@@ -36,13 +36,13 @@ export class KeyFrame {
     this.frameOutTangent = hasFrameTangents ? [json.o.x, json.o.y] : undefined;
 
     if (hasValueTangents) {
-      if ('x' in json.ti && 'y' in json.ti) {
+      if (json.ti && 'x' in json.ti && 'y' in json.ti) {
         this.valueInTangent = [json.ti.x, json.ti.y];
       } else {
         this.valueInTangent = json.ti;
       }
 
-      if ('x' in json.to && 'y' in json.to) {
+      if (json.to && 'x' in json.to && 'y' in json.to) {
         this.valueOutTangent = [json.to.x, json.to.y];
       } else {
         this.valueOutTangent = json.to;