�Chore: rewrite parseListConfig for a small perf gain. (#9300)

eslint · Sep 15, 2017 · 12388d4 · 12388d4
1 parent ce1f084
commit 12388d4
Showing 1 changed file with 7 additions and 9 deletions.
diff --git a/lib/linter.js b/lib/linter.js
@@ -146,17 +146,15 @@ function parseJsonConfig(string, location) {
  */
 function parseListConfig(string) {
     const items = {};
+    const reg = /[\w\-/]+/g;
+    const elementMatches = string.match(reg);
 
-    // Collapse whitespace around ,
-    string = string.replace(/\s*,\s*/g, ",");
+    if (elementMatches) {
+        elementMatches.forEach(name => {
+            items[name] = true;
+        });
+    }
 
-    string.split(/,+/).forEach(name => {
-        name = name.trim();
-        if (!name) {
-            return;
-        }
-        items[name] = true;
-    });
     return items;
 }