fix transition-group transition on empty array

kingwl · kingwl · commit b8ad6ea56dd1 · 2017-02-10T19:02:36.000+08:00
diff --git a/src/platforms/web/runtime/components/transition-group.js b/src/platforms/web/runtime/components/transition-group.js
@@ -90,7 +90,7 @@ export default {
   updated () {
     const children = this.prevChildren
     const moveClass = this.moveClass || ((this.name || 'v') + '-move')
-    if (!children.length || !this.hasMove(children[0].elm, moveClass)) {
+    if (!children.length || !children.every(c => this.hasMove(c.elm, moveClass))) {
       return
     }
 

Original file line number	Diff line number	Diff line change
`@@ -90,7 +90,7 @@ export default {`
`90`	`90`	`updated () {`
`91`	`91`	`const children = this.prevChildren`
`92`	`92`	`const moveClass = this.moveClass \|\| ((this.name \|\| 'v') + '-move')`
`93`		`- if (!children.length \|\| !this.hasMove(children[0].elm, moveClass)) {`
	`93`	`+ if (!children.length \|\| !children.every(c => this.hasMove(c.elm, moveClass))) {`
`94`	`94`	`return`
`95`	`95`	`}`
`96`	`96`