From 14db3dd9e23cb02e65ea4d598085a61127f5ff2f Mon Sep 17 00:00:00 2001
From: Michael Amaral <mike@meevi.dev>
Date: Thu, 30 Jul 2020 03:26:35 -0300
Subject: [PATCH] fixing currency parse invalid value with decimal arguments

---
 package.json                         | 2 +-
 src/__tests__/currencyParser.spec.ts | 4 ++++
 src/currencyParser.ts                | 5 +++--
 3 files changed, 8 insertions(+), 3 deletions(-)

diff --git a/package.json b/package.json
index 284bfef..cdecb26 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@platformbuilders/helpers",
-  "version": "0.2.3",
+  "version": "0.2.4",
   "description": "Platfom builders helpers library",
   "main": "dist/index.js",
   "types": "dist/index.d.ts",
diff --git a/src/__tests__/currencyParser.spec.ts b/src/__tests__/currencyParser.spec.ts
index dbe78c2..f715165 100644
--- a/src/__tests__/currencyParser.spec.ts
+++ b/src/__tests__/currencyParser.spec.ts
@@ -6,6 +6,10 @@ describe('currencyParser tests', () => {
       const parsed = currencyParser('abc');
       expect(parsed).toBe('R$ 0,00');
     });
+    it('should format currency properly if value has only letters and consider number of decimals', () => {
+      const parsed = currencyParser('abc', 0);
+      expect(parsed).toBe('R$ 0');
+    });
 
     it('should format currency properly if value has letters and numbers', () => {
       const parsed = currencyParser('1k');
diff --git a/src/currencyParser.ts b/src/currencyParser.ts
index 6cf6a2d..f8e7c76 100644
--- a/src/currencyParser.ts
+++ b/src/currencyParser.ts
@@ -5,6 +5,7 @@ export const currencyParser = (
   value: string | number,
   numberOfDecimalPlaces = NUMBER_OF_DECIMAL_PLACES_DEFAULT,
 ): string => {
+  let formatValue = value;
   const isValidValue = regex.test(String(value));
   const decimals =
     numberOfDecimalPlaces < 0
@@ -12,10 +13,10 @@ export const currencyParser = (
       : numberOfDecimalPlaces;
 
   if (!isValidValue) {
-    return 'R$ 0,00';
+    formatValue = 0;
   }
 
-  const withDecimalValue = Number(value)
+  const withDecimalValue = Number(formatValue)
     .toFixed(decimals)
     .replace('.', ',')
     .replace(/(\d)(?=(\d{3})+,)/g, '$1.');