1 files changed, 40 insertions, 5 deletions
diff --git a/lib/detect.js b/lib/detect.js
index 4a6746a..0b63df4 100644
--- a/lib/detect.js
+++ b/lib/detect.js
@@ -30,13 +30,48 @@ import awaitify from './internal/awaitify'
  * @returns A Promise, if no callback is passed
  * @example
  *
- * async.detect(['file1','file2','file3'], function(filePath, callback) {
- *     fs.access(filePath, function(err) {
- *         callback(null, !err)
- *     });
- * }, function(err, result) {
+ * // dir1 is a directory that contains file1.txt, file2.txt
+ * // dir2 is a directory that contains file3.txt, file4.txt
+ * // dir3 is a directory that contains file5.txt
+ *
+ * // asynchronous function that checks if a file exists
+ * function fileExists(file, callback) {
+ *    fs.access(file, fs.constants.F_OK, (err) => {
+ *        callback(null, !err);
+ *    });
+ * }
+ *
+ * async.detect(['file3.txt','file2.txt','dir1/file1.txt'], fileExists,
+ *    function(err, result) {
+ *        console.log(result);
+ *        // dir1/file1.txt
+ *        // result now equals the first file in the list that exists
+ *    }
+ *);
+ *
+ * // Using Promises
+ * async.detect(['file3.txt','file2.txt','dir1/file1.txt'], fileExists)
+ * .then(result => {
+ *     console.log(result);
+ *     // dir1/file1.txt
  *     // result now equals the first file in the list that exists
+ * }).catch(err => {
+ *     console.log(err);
  * });
+ *
+ * // Using async/await
+ * async () => {
+ *     try {
+ *         let result = await async.detect(['file3.txt','file2.txt','dir1/file1.txt'], fileExists);
+ *         console.log(result);
+ *         // dir1/file1.txt
+ *         // result now equals the file in the list that exists
+ *     }
+ *     catch (err) {
+ *         console.log(err);
+ *     }
+ * }
+ *
  */
 function detect(coll, iteratee, callback) {
     return createTester(bool => bool, (res, item) => item)(eachOf, coll, iteratee, callback)