From d846c25dca4adeb4262f98957f1b887fe6b29912 Mon Sep 17 00:00:00 2001
From: Liza Ramo <liza.h.ramo@gmail.com>
Date: Sat, 17 Oct 2015 16:48:57 -0400
Subject: Core: make isNumeric test work on Symbol

Ref #2645
Closes #2657

(cherry picked from commit 0703fd52ef88a2cdac93502070c51c93ffa1dfdd)
---
 src/core.js | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'src')

diff --git a/src/core.js b/src/core.js
index 5e0037f19..4a1820b3d 100644
--- a/src/core.js
+++ b/src/core.js
@@ -221,7 +221,8 @@ jQuery.extend( {
 		// ...but misinterprets leading-number strings, particularly hex literals ("0x...")
 		// subtraction forces infinities to NaN
 		// adding 1 corrects loss of precision from parseFloat (#15100)
-		return !jQuery.isArray( obj ) && ( obj - parseFloat( obj ) + 1 ) >= 0;
+		var realStringObj = obj && obj.toString();
+		return !jQuery.isArray( obj ) && ( realStringObj - parseFloat( realStringObj ) + 1 ) >= 0;
 	},
 
 	isEmptyObject: function( obj ) {
-- 
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