streamline exists callback

mhkeller · Jul 29, 2015 · 078a22a · 078a22a
1 parent a2e3f41
commit 078a22a
Showing 1 changed file with 1 addition and 3 deletions.
diff --git a/lib/index.js b/lib/index.js
@@ -85,15 +85,13 @@ helpers.discernFileFormatter = function (fileName) {
  *
  * @example
  * var exists = io.exists('path/to/data.tsv', function (err, exists) {
- *   console.log(err) // `false` if the file exists, `true` if not.
  *   console.log(exists) // `true` if the file exists, `false` if not.
  * })
  *
  */
 helpers.exists = function (filename, cb) {
   fs.access(function (err) {
-    var exists = err ? false : true
-    cb(!exists, exists)
+    cb(err, err !== null)
   })
 }