[improvement] optimize eslint-disable (#4070)

src/utils/deep-assign.ts

@@ -1,4 +1,3 @@
-/* eslint-disable no-use-before-define */
 import { isDef, isObj } from '.';
 import { ObjectIndex } from './types';
 
@@ -14,6 +13,7 @@ function assignKey(to: ObjectIndex, from: ObjectIndex, key: string) {
   if (!hasOwnProperty.call(to, key) || !isObj(val) || typeof val === 'function') {
     to[key] = val;
   } else {
+    // eslint-disable-next-line no-use-before-define
     to[key] = deepAssign(Object(to[key]), from[key]);
   }
 }

src/utils/dom/event.ts

@@ -1,21 +1,21 @@
-/* eslint-disable no-empty */
-/* eslint-disable getter-return */
-/* eslint-disable import/no-mutable-exports */
 import { isServer } from '..';
 import { EventHandler } from '../types';
 
+// eslint-disable-next-line import/no-mutable-exports
 export let supportsPassive = false;
 
 if (!isServer) {
   try {
     const opts = {};
     Object.defineProperty(opts, 'passive', {
+      // eslint-disable-next-line getter-return
       get() {
         /* istanbul ignore next */
         supportsPassive = true;
       }
     });
     window.addEventListener('test-passive', null as any, opts);
+  // eslint-disable-next-line no-empty
   } catch (e) {}
 }
 

src/utils/validate/number.ts

@@ -1,5 +1,3 @@
-/* eslint-disable no-self-compare */
-
 export function isNumber(value: string): boolean {
   return /^\d+(\.\d+)?$/.test(value);
 }
@@ -9,5 +7,6 @@ export function isNaN(value: any): boolean {
     return Number.isNaN(value);
   }
 
+  // eslint-disable-next-line no-self-compare
   return value !== value;
 }