babel-preset-o - npm Package Compare versions

Comparing version 0.2.1 to 0.3.0

index.js

@@ -5,3 +5,5 @@ const path = require('path')
   const nodeEnv = process.env.NODE_ENV
+  const isTest = nodeEnv === 'test'
   const isDev = nodeEnv === 'development'
+  const isProd = nodeEnv === 'production'
 
@@ -16,5 +18,6 @@ let absoluteRuntime = null
   const {
-    nodeVersion = 'current',
     modules = false,
     useBuiltIns = false,
+    runtime = 'classic',
+    nodeVersion,
   } = options
@@ -24,6 +27,18 @@
     presets: [
-      require("@babel/preset-react").default,
       [
-        require("@babel/preset-env").default,
+        require('@babel/preset-react').default,
         {
+          ...(runtime !== 'automatic' ? { useBuiltIns: true } : {}),
+          runtime,
+        }
+      ],
+      isTest && [
+        require('@babel/preset-env').default,
+        {
+          targets: { node: 'current' }
+        }
+      ],
+      isProd && [
+        require('@babel/preset-env').default,
+        {
           loose: true,
@@ -33,12 +48,14 @@ corejs: useBuiltIns ? 3 : false,
           useBuiltIns,
-          targets: {
-            node: nodeVersion,
-          },
+          // when node version is specified, use nodeVersion first,
+          // otherwise let browserslist works
+          ...(nodeVersion ? {
+            targets: { node: nodeVersion }
+          } : {}),
           exclude: ['@babel/plugin-transform-typeof-symbol'],
         },
       ],
-    ],
+    ].filter(Boolean),
     plugins: [
       [
-        require("@babel/plugin-proposal-class-properties").default,
+        require('@babel/plugin-proposal-class-properties').default,
         { loose: true },
@@ -58,7 +75,7 @@ ],
       [
-        require("@babel/plugin-proposal-optional-chaining").default,
+        require('@babel/plugin-proposal-optional-chaining').default,
         { loose: true },
       ],
       [
-        require("@babel/plugin-proposal-nullish-coalescing-operator").default,
+        require('@babel/plugin-proposal-nullish-coalescing-operator').default,
         { loose: true },
@@ -65,0 +82,0 @@ ]

package.json

 {
   "name": "babel-preset-o",
-  "version": "0.2.1",
+  "version": "0.3.0",
   "description": "tiny and flexible babel preset",
@@ -5,0 +5,0 @@ "main": "index.js",

README.md

@@ -5,3 +5,3 @@ # babel-preset-o
 cover basic usage for react development
-### Usage
+## Usage
 
@@ -18,1 +18,27 @@ ```sh
 ```
+
+## Options
+Use this preset with customized options to extend flexibility of compilation.
+#### `nodeVersion`
+
+Default is `undefined`, will use browserslist if project specified. Ref to [babel-preset-env#targetsnode](https://babeljs.io/docs/en/babel-preset-env#targetsnode)
+#### `modules`
+
+Default is `false`, ref to [babel-preset-env#modules](https://babeljs.io/docs/en/babel-preset-env#modules)
+#### `useBuiltIns`
+
+Default is `false`, ref to [babel-preset-env#usebuiltins](https://babeljs.io/docs/en/babel-preset-env#usebuiltins)
+#### `runtime`
+
+Default is `'classic'`, Ref to [babel-preset-react#runtime](https://babeljs.io/docs/en/babel-preset-react#runtime)
+
+### Example
+
+```js
+// babel.config.js
+module.exports = {
+  presets: [
+    ['babel-preset-o', { modules: 'commonjs', nodeVersion: '8' }]
+  ]  
+}
+```

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Improved metrics

Total package byte prevSize

3650

increased by57.12%

Lines of code

76

increased by28.81%

Number of lines in readme file

43

increased by152.94%

No dependency changes