From 16f911e126d69cecc2d98a7fbdea2bd1bd9b4c47 Mon Sep 17 00:00:00 2001
From: bluelovers <codelovers@users.sourceforge.net>
Date: Thu, 6 Feb 2020 20:54:42 +0800
Subject: [PATCH] fix: bug when import 'lib/then'

---
 lib/then.js | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/lib/then.js b/lib/then.js
index 731454a8..85d32116 100644
--- a/lib/then.js
+++ b/lib/then.js
@@ -11,11 +11,12 @@ Gun.chain.promise = function(cb) {
 };
 
 // Returns a promise for the data, key of the gun call
-Gun.chain.then = function() {
+Gun.chain.then = function(cb) {
 	var gun = this;
-  return (new Promise((res, rej)=>{
+  var p = (new Promise((res, rej)=>{
     gun.once(function (data, key) {
       res(data, key); //call resolve when data is returned
     })
   }))
+  return cb ? p.then(cb) : p;
 };