Don’t add duplicate entries to map

babel · Mar 3, 2017 · 1edddca · 1edddca
1 parent fc040dd
commit 1edddca
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/scripts/build-data.js b/scripts/build-data.js
@@ -69,6 +69,7 @@ const invertedEqualsEnv = Object.keys(envs)
           // that newer ones have
           if (!isNaN(equalsVersion) && equalsVersion <= version) {
             if (!a[equals]) a[equals] = [];
+            if (a[equals].indexOf(b) >= 0) return;
             a[equals].push(b);
           }
         });