From 9adbfcb26ca43139ef6a243e8c603a9bca688d83 Mon Sep 17 00:00:00 2001
From: neverland <chenjiahan@youzan.com>
Date: Mon, 8 Jun 2020 19:57:25 +0800
Subject: [PATCH] perf(Field): reduce input value assignment (#6489)

---
 src/field/index.js | 18 +++++-------------
 1 file changed, 5 insertions(+), 13 deletions(-)

diff --git a/src/field/index.js b/src/field/index.js
index 61fa5f82f..16ceb8003 100644
--- a/src/field/index.js
+++ b/src/field/index.js
@@ -276,33 +276,25 @@ export default createComponent({
       }
 
       let { value } = target;
-      const { maxlength } = this;
+      const originValue = value;
 
       // native maxlength not work when type is number
+      const { maxlength } = this;
       if (isDef(maxlength) && value.length > maxlength) {
         value = value.slice(0, maxlength);
-        target.value = value;
       }
 
       if (this.type === 'number' || this.type === 'digit') {
-        const originValue = value;
         const allowDot = this.type === 'number';
-
         value = formatNumber(value, allowDot);
-
-        if (value !== originValue) {
-          target.value = value;
-        }
       }
 
       if (this.formatter) {
-        const originValue = value;
-
         value = this.formatter(value);
+      }
 
-        if (value !== originValue) {
-          target.value = value;
-        }
+      if (value !== originValue) {
+        target.value = value;
       }
 
       return value;