chore : refactor code

Author: amirkian007

packages/compiler-core/__tests__/transforms/transformElement.spec.ts

@@ -1244,7 +1244,7 @@ describe('compiler: element transform', () => {
       else expect(spy).not.toHaveBeenCalled()
     }
 
-    test('does not warn if has one children', () => {
+    test('does not warn if has one child', () => {
       checkWarning(
         `<KeepAlive>
            <component :is="activeComponent"/>

packages/compiler-core/src/transforms/transformElement.ts

@@ -145,8 +145,8 @@ export const transformElement: NodeTransform = (node, context) => {
     }
 
     // children
-      if (node.children.length > 0) {
-      let filterdChildren = node.children
+    if (node.children.length > 0) {
+      let children = node.children
       if (vnodeTag === KEEP_ALIVE) {
         // Although a built-in component, we compile KeepAlive with raw children
         // instead of slot functions so that it can be used inside Transition
@@ -158,13 +158,13 @@ export const transformElement: NodeTransform = (node, context) => {
         // 2. Force keep-alive to always be updated, since it uses raw children.
         patchFlag |= PatchFlags.DYNAMIC_SLOTS
         //filter out potential comment nodes
-        filterdChildren  = filterdChildren.filter(c => c.type !== NodeTypes.COMMENT)
+        children  = children.filter(c => c.type !== NodeTypes.COMMENT)
         // warn if <KeepAlive> has multiple children
-        if (__DEV__ && filterdChildren.length > 1) {
+        if (__DEV__ && children.length > 1) {
           context.onError(
             createCompilerError(ErrorCodes.X_KEEP_ALIVE_INVALID_CHILDREN, {
-              start: filterdChildren[0].loc.start,
-              end: filterdChildren[filterdChildren.length - 1].loc.end,
+              start: children[0].loc.start,
+              end: children[children.length - 1].loc.end,
               source: ''
             })
           )
@@ -184,8 +184,8 @@ export const transformElement: NodeTransform = (node, context) => {
         if (hasDynamicSlots) {
           patchFlag |= PatchFlags.DYNAMIC_SLOTS
         }
-      } else if (filterdChildren.length === 1 && vnodeTag !== TELEPORT) {
-        const child = filterdChildren[0]
+      } else if (children.length === 1 && vnodeTag !== TELEPORT) {
+        const child = children[0]
         const type = child.type
         // check for dynamic text children
         const hasDynamicTextChild =