Code cleanup.

1. General clean up.
2. Replaced for loops with while loops.

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@composi/core",
-  "version": "0.9.3",
+  "version": "0.9.4",
   "description": "A JavaScript library for creating websites, PWAs and hybrid apps.",
   "main": "src/index.js",
   "scripts": {

src/h.js

@@ -27,7 +27,8 @@ export function h(type, props, ...children) {
 
   while (tempBox.length > 0) {
     if (Array.isArray((node = tempBox.pop()))) {
-      for (length = node.length; length-- > 0; ) {
+      let length = node.length
+      while (length-- > 0) {
         tempBox.push(node[length])
       }
     } else if (node === false || node === true || node == null) {

src/union.js

@@ -3,7 +3,9 @@ const hasOwnProperty = Object.prototype.hasOwnProperty
 function safeUnion(types, options) {
   const prefix = (options && options.prefix) || ''
   const prefixSize = prefix.length
+  const variants = Object.create(null)
   let stripPrefix
+
   if (prefixSize) {
     stripPrefix = tag =>
       tag &&
@@ -15,7 +17,7 @@ function safeUnion(types, options) {
   }
 
   const matcher = (handlers, catchAll) => {
-    return function _matcher(tag, context) {
+    return (tag, context) => {
       const tagType = stripPrefix(tag)
       const match = hasOwnProperty.call(handlers, tagType) && handlers[tagType]
       return match ? match(tag.data, context) : catchAll(context)
@@ -33,11 +35,12 @@ function safeUnion(types, options) {
     }
   }
 
-  const variants = Object.create(null)
-  for (let i = 0; i < types.length; i++) {
-    const type = types[i]
+  let idx = 0
+  while (idx < types.length) {
+    const type = types[idx]
     const prefixedType = prefix + type
     variants[type] = data => ({ type: prefixedType, data })
+    idx++
   }
 
   return { variants, methods }

src/vdom.js

@@ -33,10 +33,11 @@ function createKeyMap(children, startCount, end) {
   let key
   let vnode
 
-  for (; startCount <= end; startCount++) {
+  while (startCount <= end) {
     if ((key = (vnode = children[startCount]).key) != null) {
       out[key] = vnode
     }
+    startCount++
   }
 
   return out
@@ -136,9 +137,11 @@ function createElement(vnode, lifecycle, isSVG) {
       props['onmount'](element)
     })
   }
-
-  for (let i = 0, length = vnode.children.length; i < length; i++) {
-    element.appendChild(createElement(vnode.children[i], lifecycle, isSVG))
+  let idx = 0
+  const length = vnode.children.length
+  while (idx < length) {
+    element.appendChild(createElement(vnode.children[idx], lifecycle, isSVG))
+    idx++
   }
 
   for (let prop in props) {
@@ -154,8 +157,11 @@ function createElement(vnode, lifecycle, isSVG) {
  * @return {Element}
  */
 function removeChildren(node) {
-  for (let i = 0, length = node.children.length; i < length; i++) {
-    removeChildren(node.children[i])
+  let idx = 0
+  const length = node.children.length
+  while (idx < length) {
+    removeChildren(node.children[idx])
+    idx++
   }
 
   return node.element