Only iterate over tokens once

wcjohnson · Mar 25, 2017 · 539af05 · 539af05
1 parent 06c3a31
commit 539af05
Showing 1 changed file with 6 additions and 5 deletions.
diff --git a/babylon-to-espree/toTokens.js b/babylon-to-espree/toTokens.js
@@ -4,12 +4,13 @@ var toToken = require("./toToken");
 module.exports = function (tokens, tt, code) {
   // transform tokens to type "Template"
   convertTemplateType(tokens, tt);
-  var transformedTokens = tokens.filter((token) => {
-    return token.type !== "CommentLine" && token.type !== "CommentBlock";
-  });
 
-  for (var i = 0, l = transformedTokens.length; i < l; i++) {
-    transformedTokens[i] = toToken(transformedTokens[i], tt, code);
+  var transformedTokens = [];
+  for (var i = 0; i < tokens.length; i++) {
+    var token = tokens[i];
+    if (token.type !== "CommentLine" && token.type !== "CommentBlock") {
+      transformedTokens.push(toToken(token, tt, code));
+    }
   }
 
   return transformedTokens;