Resolved Cannot convert a BigInt value to a number (#723)

* Resolved Cannot convert a BigInt value to a number

Signed-off-by: Camillo Positano <59197708+camillo-positano@users.noreply.github.com>

* added test for asNumber throwing exception

Exception thrown was  Cannot convert a BigInt value to a number.

This test verifies that it can convert a big int

Signed-off-by: Camillo Positano <59197708+camillo-positano@users.noreply.github.com>

---------

Signed-off-by: Camillo Positano <59197708+camillo-positano@users.noreply.github.com>

Author: camillo-positano

lib/serializer.js

@@ -41,7 +41,7 @@ module.exports = class Serializer {
 
   asNumber (i) {
     // fast cast to number
-    const num = +i
+    const num = Number(i)
     // check if number is NaN
     // eslint-disable-next-line no-self-compare
     if (num !== num) {

test/asNumber.test.js

@@ -0,0 +1,13 @@
+'use strict'
+
+const test = require('tap').test
+
+test('asNumber should convert BigInt', (t) => {
+  t.plan(1)
+  const Serializer = require('../lib/serializer')
+  const serializer = new Serializer()
+
+  const number = serializer.asNumber(11753021440n)
+
+  t.equal(number, '11753021440')
+})