preventing the error when gScore.get(id(child)) == 0

nervgh · Jul 27, 2017 · b6b6af8 · b6b6af8
1 parent 2151346
commit b6b6af8
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Showing 2 changed files with 2 additions and 2 deletions.
diff --git a/lib/index.js b/lib/index.js
@@ -39,7 +39,7 @@ function astar (start, goal, {id, isGoal, getSuccessors, distance, estimate}) {
 
       // The distance from start to a child
       const tentativeGScore = gScore.get(id(node)) + distance(node, child)
-      const childGScore = gScore.get(id(child)) || Infinity
+      const childGScore = gScore.has(id(child)) ? gScore.get(id(child)) : Infinity
 
       // This is not a better path
       if (tentativeGScore >= childGScore) {

diff --git a/package.json b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "astar-algorithm",
-  "version": "0.1.1",
+  "version": "0.1.2",
   "homepage": "https://github.com/nervgh/astar-algorithm",
   "description": "An almost universal implementation of A* search algorithm in JavaScript",
   "main": "lib/index.js",