From bea1151a287dc82e81b25e86e9af5841aec72595 Mon Sep 17 00:00:00 2001
From: jonschlinkert <jon.schlinkert@sellside.com>
Date: Thu, 19 Oct 2017 09:23:04 -0400
Subject: [PATCH] make comparison more specific

---
 index.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/index.js b/index.js
index 0c4f701..c7da6de 100644
--- a/index.js
+++ b/index.js
@@ -1,6 +1,6 @@
 'use strict';
 
-/**
+/*!
  * This is almost entirely based on:
  * https://www.npmjs.com/package/inquirer-autocomplete-prompt
  * Copyright (c) 2015, Martin Hansen <martin@martinhansen.no>
@@ -20,7 +20,7 @@ var utils = require('readline-utils');
 
 function Prompt() {
   BasePrompt.apply(this, arguments);
-  if (!this.question.source) {
+  if (typeof this.question.source !== 'function') {
     throw new TypeError('expected source to be defined');
   }