From dabd458b4b817136e2a34c97d40e8854c344bf69 Mon Sep 17 00:00:00 2001
From: Johann-S <johann.servoire@gmail.com>
Date: Fri, 20 Mar 2020 22:33:23 +0100
Subject: Backport (#30383)

fix: ensure totype always return stringified null when null passed
---
 js/src/util.js | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'js/src')

diff --git a/js/src/util.js b/js/src/util.js
index d130682e3..95186bb66 100644
--- a/js/src/util.js
+++ b/js/src/util.js
@@ -19,6 +19,10 @@ const MILLISECONDS_MULTIPLIER = 1000
 
 // Shoutout AngusCroll (https://goo.gl/pxwQGp)
 function toType(obj) {
+  if (obj === null || typeof obj === 'undefined') {
+    return `${obj}`
+  }
+
   return {}.toString.call(obj).match(/\s([a-z]+)/i)[1].toLowerCase()
 }
 
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