handle optional catch bindings in no-useless-catch

When optional catch bindings are used, `node.param` is `null`.
eslint · Dec 23, 2018 · 08417f6 · 08417f6
1 parent 0b81fc2
commit 08417f6
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/lib/rules/no-useless-catch.js b/lib/rules/no-useless-catch.js
@@ -27,6 +27,7 @@ module.exports = {
         return {
             CatchClause(node) {
                 if (
+                    node.param &&
                     node.param.type === "Identifier" &&
                     node.body.body.length &&
                     node.body.body[0].type === "ThrowStatement" &&