From 2a04d9a51b953d989c318cd446df26e530b6ba9b Mon Sep 17 00:00:00 2001
From: elenatorro <elenatorro@gmail.com>
Date: Fri, 8 Nov 2019 18:40:03 +0100
Subject: [PATCH] Fix isNumber

---
 src/renderer/viz/expressions/belongs.js | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/src/renderer/viz/expressions/belongs.js b/src/renderer/viz/expressions/belongs.js
index 937ed52f2..b9d295b3a 100644
--- a/src/renderer/viz/expressions/belongs.js
+++ b/src/renderer/viz/expressions/belongs.js
@@ -1,6 +1,5 @@
 import { implicitCast, checkType, checkExpression, checkMaxArguments } from './utils';
 import BaseExpression from './base';
-import * as util from 'util';
 
 /**
  * Check if a categorical value belongs to a list of categories.
@@ -121,7 +120,7 @@ function generateBelongsExpression (name, inlineMaker, jsEval) {
 
         _getFuncList () {
             return (elem) => {
-                const x = util.isNumber(elem) ? `${elem}.0` : `cat${elem._uid}`;
+                const x = this.input.type === 'number' ? `${elem}.0` : `cat${elem._uid}`;
                 return `if (x${this.compare}${x}) { return 1.; }`;
             };
         }