From 7c1e171bab2ccc64e8e36a98ec252ca3a4b91187 Mon Sep 17 00:00:00 2001
From: btea <2356281422@qq.com>
Date: Fri, 11 Jul 2025 06:15:18 +0800
Subject: [PATCH] feat(components): [input-number] warn when exceeds the safe
 integer (#19405)

---
 .../components/input-number/src/input-number.vue   | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/packages/components/input-number/src/input-number.vue b/packages/components/input-number/src/input-number.vue
index 8d5adb1796..173509ff94 100755
--- a/packages/components/input-number/src/input-number.vue
+++ b/packages/components/input-number/src/input-number.vue
@@ -192,6 +192,20 @@ const getPrecision = (value: number | null | undefined) => {
 }
 const ensurePrecision = (val: number, coefficient: 1 | -1 = 1) => {
   if (!isNumber(val)) return data.currentValue
+  if (val >= Number.MAX_SAFE_INTEGER && coefficient === 1) {
+    debugWarn(
+      'InputNumber',
+      'The value has reached the maximum safe integer limit.'
+    )
+    return val
+  } else if (val <= Number.MIN_SAFE_INTEGER && coefficient === -1) {
+    debugWarn(
+      'InputNumber',
+      'The value has reached the minimum safe integer limit.'
+    )
+    return val
+  }
+
   // Solve the accuracy problem of JS decimal calculation by converting the value to integer.
   return toPrecision(val + props.step * coefficient)
 }