From e481c5b570341bc1e3c88d5a1df311edf0e2b6b1 Mon Sep 17 00:00:00 2001
From: Amjad Masad <amjad.masad@gmail.com>
Date: Tue, 24 Nov 2015 18:58:21 -0800
Subject: [PATCH] use + instead of template string

---
 packages/babel-generator/src/generators/expressions.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/babel-generator/src/generators/expressions.js b/packages/babel-generator/src/generators/expressions.js
index f564f2ab7a..ffe55eb3f1 100644
--- a/packages/babel-generator/src/generators/expressions.js
+++ b/packages/babel-generator/src/generators/expressions.js
@@ -172,7 +172,7 @@ export function AssignmentExpression(node: Object, parent: Object) {
              t.isUnaryExpression(node.right.argument, { prefix: true, operator: "--" }) ||
              // Need spaces for operators of the same kind to avoid: `a+++b`
              t.isUnaryExpression(node.right, { prefix: true, operator: node.operator }) ||
-             t.isUpdateExpression(node.right, { prefix: true, operator: `${node.operator}${node.operator}` });
+             t.isUpdateExpression(node.right, { prefix: true, operator: node.operator + node.operator });
 
   }