refactor: remove null comparisons

packages/runtime-core/src/vnode.ts

@@ -196,7 +196,7 @@ export function createBlock(
   currentBlock = blockStack[blockStack.length - 1] || null
   // a block is always going to be patched, so track it as a child of its
   // parent block
-  if (currentBlock !== null) {
+  if (currentBlock) {
     currentBlock.push(vnode)
   }
   return vnode
@@ -239,13 +239,13 @@ export function createVNode(
   }
 
   // class & style normalization.
-  if (props !== null) {
+  if (props) {
     // for reactive or proxy objects, we need to clone it to enable mutation.
     if (isReactive(props) || SetupProxySymbol in props) {
       props = extend({}, props)
     }
     let { class: klass, style } = props
-    if (klass != null && !isString(klass)) {
+    if (klass && !isString(klass)) {
       props.class = normalizeClass(klass)
     }
     if (isObject(style)) {
@@ -275,9 +275,9 @@ export function createVNode(
     _isVNode: true,
     type,
     props,
-    key: props !== null && props.key !== undefined ? props.key : null,
+    key: props && props.key !== undefined ? props.key : null,
     ref:
-      props !== null && props.ref !== undefined
+      props && props.ref !== undefined
         ? [currentRenderingInstance!, props.ref]
         : null,
     scopeId: currentScopeId,
@@ -304,7 +304,7 @@ export function createVNode(
   // the next vnode so that it can be properly unmounted later.
   if (
     shouldTrack > 0 &&
-    currentBlock !== null &&
+    currentBlock &&
     // the EVENTS flag is only for hydration and if it is the only flag, the
     // vnode should not be considered dynamic due to handler caching.
     patchFlag !== PatchFlags.HYDRATE_EVENTS &&