优化动画逻辑

package.json

@@ -1,6 +1,6 @@
 {
   "name": "wkit",
-  "version": "1.10.12",
+  "version": "1.10.13",
   "type": "module",
   "description": "A library for building fast, lightweight web components.",
   "main": "dist/index.js",

src/anim.js

@@ -5,7 +5,7 @@
  */
 
 export function animate(duration = 200, fromto = [], out = false) {
-  if (out === false) {
+  if (out === false && this.style.display === 'none') {
     this.style.display = ''
   }
   let res = this.animate(fromto, {

src/html.js

@@ -140,6 +140,7 @@ function getTemplateHtml(strings, type) {
   }
   return [htmlResult, attrNames]
 }
+
 class Template {
   constructor({ strings, ['__dom_type__']: type }, options) {
     this.parts = []
@@ -480,7 +481,7 @@ class AttributePart {
     this.$parent = parent
     this.options = options
     if (strings.length > 2 || strings[0] !== '' || strings[1] !== '') {
-      this._$committedValue = new Array(strings.length - 1).fill(new String())
+      this._$committedValue = new Array(strings.length - 1).fill('')
       this.strings = strings
     } else {
       this._$committedValue = NOTHING