From 32cddd4b594c18774f6f474b9a38ef47a60580bf Mon Sep 17 00:00:00 2001
From: mertsincan <sincan.mert@gmail.com>
Date: Mon, 6 Sep 2021 14:54:46 +0300
Subject: [PATCH] Fixed #10583 - Add allowEmpty property to InputNumber

---
 src/app/components/inputnumber/inputnumber.ts | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/app/components/inputnumber/inputnumber.ts b/src/app/components/inputnumber/inputnumber.ts
index a31e0102c06..4f8921009cc 100755
--- a/src/app/components/inputnumber/inputnumber.ts
+++ b/src/app/components/inputnumber/inputnumber.ts
@@ -90,6 +90,8 @@ export class InputNumber implements OnInit,ControlValueAccessor {
 
     @Input() step: number = 1;
 
+    @Input() allowEmpty: boolean = true;
+
     @Input() inputStyle: any;
 
     @Input() inputStyleClass: string;
@@ -885,6 +887,7 @@ export class InputNumber implements OnInit,ControlValueAccessor {
 
         if (valueStr != null) {
             newValue = this.parseValue(valueStr);
+            newValue = !newValue && !this.allowEmpty ? 0 : newValue;
             this.updateInput(newValue, insertedValueStr, operation, valueStr);
 
             this.handleOnInput(event, currentValue, newValue);
@@ -1045,7 +1048,8 @@ export class InputNumber implements OnInit,ControlValueAccessor {
     }
 
     formattedValue() {
-        return this.formatValue(this.value);
+        const val = !this.value && !this.allowEmpty ? 0 : this.value;
+        return this.formatValue(val);
     }
 
     updateModel(event, value) {