NumberInput - fix floating point error (#2877)

Author: M-i-k-e-l

src/components/numberInput/Presenter.ts

@@ -50,7 +50,7 @@ function factor(options: Options): number {
 }
 
 export function getInitialNumber(propsInitialNumber = 0, options: Options) {
-  return propsInitialNumber * factor(options);
+  return Number((propsInitialNumber * factor(options)).toFixed(0));
 }
 
 export function parseInput(text: string, options: Options, initialNumber?: number): NumberInputData {

src/components/numberInput/__tests__/Presenter.spec.ts

@@ -39,6 +39,10 @@ describe('NumberInput', () => {
     it('should return 10 for 1 if fractionDigits is 1', () => {
       expect(getInitialNumber(1, {...EN_OPTIONS, fractionDigits: 1})).toEqual(10);
     });
+
+    it('Handle wrong result with some X.XX numbers', () => {
+      expect(getInitialNumber(8.97, {...EN_OPTIONS})).toEqual(897);
+    });
   });
 
   describe('getInitialData', () => {