refactor: remove null comparisons

packages/runtime-core/src/components/KeepAlive.ts

@@ -85,7 +85,7 @@ const KeepAliveImpl = {
       queuePostRenderEffect(() => {
         const component = vnode.component!
         component.isDeactivated = false
-        if (component.a !== null) {
+        if (component.a) {
           invokeHooks(component.a)
         }
       }, parentSuspense)
@@ -95,7 +95,7 @@ const KeepAliveImpl = {
       move(vnode, storageContainer, null, MoveType.LEAVE, parentSuspense)
       queuePostRenderEffect(() => {
         const component = vnode.component!
-        if (component.da !== null) {
+        if (component.da) {
           invokeHooks(component.da)
         }
         component.isDeactivated = true

packages/runtime-core/src/components/Portal.ts

@@ -44,7 +44,7 @@ export const PortalImpl = {
       const target = (n2.target = isString(targetSelector)
         ? querySelector!(targetSelector)
         : targetSelector)
-      if (target != null) {
+      if (target) {
         if (shapeFlag & ShapeFlags.TEXT_CHILDREN) {
           setElementText(target, children as string)
         } else if (shapeFlag & ShapeFlags.ARRAY_CHILDREN) {
@@ -93,7 +93,7 @@ export const PortalImpl = {
         const nextTarget = (n2.target = isString(targetSelector)
           ? querySelector!(targetSelector)
           : targetSelector)
-        if (nextTarget != null) {
+        if (nextTarget) {
           // move content
           if (shapeFlag & ShapeFlags.TEXT_CHILDREN) {
             setElementText(target, '')

packages/runtime-core/src/components/Suspense.ts

@@ -536,7 +536,7 @@ export function queueEffectWithSuspense(
   fn: Function | Function[],
   suspense: SuspenseBoundary | null
 ): void {
-  if (suspense !== null && !suspense.isResolved) {
+  if (suspense && !suspense.isResolved) {
     if (isArray(fn)) {
       suspense.effects.push(...fn)
     } else {