perf: partially replace .concat with .push (#13609)

2021-08-14 16:57:06 +02:00
parent 6a651e4641
commit 10640b2aad
18 changed files with 93 additions and 74 deletions
--- a/packages/babel-cli/src/babel-external-helpers.ts
+++ b/packages/babel-cli/src/babel-external-helpers.ts
@@ -10,7 +10,11 @@ function collect(

  const values = value.split(",");

-  return previousValue ? previousValue.concat(values) : values;
+  if (previousValue) {
+    previousValue.push(...values);
+    return previousValue;
+  }
+  return values;
 }

 commander.option(