From 859e555e29725df471d8110ad73c303e8a7f03b3 Mon Sep 17 00:00:00 2001
From: Emmanuel Mahuni <emahuni@users.noreply.github.com>
Date: Thu, 2 Sep 2021 18:26:11 +0200
Subject: [PATCH] fix: falsy returns undefined when it's not in pool (#523)

fixes issue #522
it was picking undefined coz index was wrong
---
 chance.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/chance.js b/chance.js
index 2b68a0a9..dafcd5e8 100644
--- a/chance.js
+++ b/chance.js
@@ -148,9 +148,9 @@
 
     Chance.prototype.falsy = function (options) {
         // return a random falsy value
-        options = initOptions(options, {pool: [false, null, 0, NaN, '']})
+        options = initOptions(options, {pool: [false, null, 0, NaN, '', undefined]})
         var pool = options.pool,
-            index = this.integer({min: 0, max: pool.length}),
+            index = this.integer({min: 0, max: pool.length - 1}),
             value = pool[index];
 
         return value;