From 99c2d424af62f7f2fd6273c3369eb6b2c814ac5c Mon Sep 17 00:00:00 2001
From: Joe Farro <joef@uber.com>
Date: Tue, 26 Sep 2017 10:57:21 -0400
Subject: [PATCH] Better var name and added a comment

---
 src/components/SearchTracePage/SearchDropdownInput.js | 6 +++---
 src/utils/regexp-escape.js                            | 3 +++
 2 files changed, 6 insertions(+), 3 deletions(-)

diff --git a/src/components/SearchTracePage/SearchDropdownInput.js b/src/components/SearchTracePage/SearchDropdownInput.js
index b0c566d3d1..60a080f6e2 100644
--- a/src/components/SearchTracePage/SearchDropdownInput.js
+++ b/src/components/SearchTracePage/SearchDropdownInput.js
@@ -48,9 +48,9 @@ export default class SearchDropdownInput extends Component {
   }
   onSearch(_, searchText) {
     const { items, maxResults } = this.props;
-    const rxStr = regexpEscape(searchText);
-    const rx = new RegExp(rxStr, 'i');
-    return items.filter(v => rx.test(v.text)).slice(0, maxResults);
+    const regexStr = regexpEscape(searchText);
+    const regex = new RegExp(regexStr, 'i');
+    return items.filter(v => regex.test(v.text)).slice(0, maxResults);
   }
   render() {
     const { input: { value, onChange } } = this.props;
diff --git a/src/utils/regexp-escape.js b/src/utils/regexp-escape.js
index f40e63f840..844b2bf44a 100644
--- a/src/utils/regexp-escape.js
+++ b/src/utils/regexp-escape.js
@@ -18,6 +18,9 @@
 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 // THE SOFTWARE.
 
+/**
+ * Escape the meta-caharacters used in regular expressions.
+ */
 export default function regexpEscape(s) {
   return s.replace(/[-/\\^$*+?.()|[\]{}]/g, '\\$&');
 }