preact-jsx-runtime - npm Package Compare versions

Comparing version 1.0.1 to 1.1.0

CHANGELOG.md

@@ -0,1 +1,7 @@
+## 1.1.0 (2020-08-16)
+
+### Performance
+
+- Optimize to avoid iterating properties in simple props pass-through case.
+
 ## 1.0.1 (2020-08-09)
@@ -2,0 +8,0 @@

jsx-runtime.js

 var preact = require('preact');
 
+/** @typedef {import('preact').ComponentType} ComponentType */
+/** @typedef {import('preact/src/jsx').JSXInternal.HTMLAttributes} HTMLAttributes */
+/** @typedef {import('preact/src/jsx').JSXInternal.SVGAttributes} SVGAttributes */
+/** @typedef {HTMLAttributes & SVGAttributes & Record<string, any>} Props
+
 /**
- * @param {import('preact').ComponentType} type     Component type.
- * @param {import('preact').Attributes}    config   Component props.
- * @param {string=}                        maybeKey Key, or undefined.
+ * @param {ComponentType} type     Component type.
+ * @param {Props}         config   Component props.
+ * @param {string=}       maybeKey Key, or undefined.
  */
 function jsx(type, config, maybeKey) {
-  var props = {},
-    propName;
+  /** @type {Props} */
+  var props;
 
-  if (maybeKey !== undefined) {
-    props.key = '' + maybeKey;
-  }
+  /** @type {string} */
+  var propName;
 
-  for (propName in config) {
-    if (Object.prototype.hasOwnProperty.call(config, propName)) {
-      props[propName] = config[propName];
+  if (maybeKey === undefined) {
+    props = config;
+  } else {
+    props = {
+      key: '' + maybeKey,
+    };
+
+    for (propName in config) {
+      if (Object.prototype.hasOwnProperty.call(config, propName)) {
+        props[propName] = config[propName];
+      }
     }
@@ -20,0 +32,0 @@ }

package.json

 {
   "name": "preact-jsx-runtime",
-  "version": "1.0.1",
+  "version": "1.1.0",
   "description": "Preact JSX runtime definition for use with automatic JSX import",
@@ -5,0 +5,0 @@ "main": "jsx-runtime.js",

No alert changes

Improved metrics

Total package byte prevSize

5817

8.87%

Lines of code

34

41.67%

No dependency changes