switch to vuepress

1 files changed, 149 insertions, 0 deletions

diff --git a/node_modules/@babel/plugin-proposal-class-properties/README.md b/node_modules/@babel/plugin-proposal-class-properties/README.md
new file mode 100644
index 00000000..dee62c85
--- /dev/null
+++ b/node_modules/@babel/plugin-proposal-class-properties/README.md
@@ -0,0 +1,149 @@
+# @babel/plugin-proposal-class-properties
+
+> This plugin transforms class properties
+
+## Example
+
+Below is a class with four class properties which will be transformed.
+
+```js
+  class Bork {
+    //Property initializer syntax
+    instanceProperty = "bork";
+    boundFunction = () => {
+      return this.instanceProperty;
+    };
+
+    //Static class properties
+    static staticProperty = "babelIsCool";
+    static staticFunction = function() {
+      return Bork.staticProperty;
+    };
+  }
+
+  let myBork = new Bork;
+
+  //Property initializers are not on the prototype.
+  console.log(myBork.__proto__.boundFunction); // > undefined
+
+  //Bound functions are bound to the class instance.
+  console.log(myBork.boundFunction.call(undefined)); // > "bork"
+
+  //Static function exists on the class.
+  console.log(Bork.staticFunction()); // > "babelIsCool"
+```
+
+
+## Installation
+
+```sh
+npm install --save-dev @babel/plugin-proposal-class-properties
+```
+
+## Usage
+
+### Via `.babelrc` (Recommended)
+
+**.babelrc**
+
+Without options:
+
+```json
+{
+  "plugins": ["@babel/plugin-proposal-class-properties"]
+}
+```
+
+With options:
+
+```json
+{
+  "plugins": [
+    ["@babel/plugin-proposal-class-properties", { "loose": true }]
+  ]
+}
+```
+
+### Via CLI
+
+```sh
+babel --plugins @babel/plugin-proposal-class-properties script.js
+```
+
+### Via Node API
+
+```javascript
+require("@babel/core").transform("code", {
+  plugins: ["@babel/plugin-proposal-class-properties"]
+});
+```
+
+## Options
+
+### `loose`
+
+`boolean`, defaults to `false`.
+
+When `true`, class properties are compiled to use an assignment expression instead of `Object.defineProperty`.
+
+#### Example
+
+```js
+  class Bork {
+    static a = 'foo';
+    static b;
+
+    x = 'bar';
+    y;
+  }
+```
+
+Without `{ "loose": true }`, the above code will compile to the following, using `Object.defineProperty`:
+
+```js
+var Bork = function Bork() {
+  babelHelpers.classCallCheck(this, Bork);
+  Object.defineProperty(this, "x", {
+    configurable: true,
+    enumerable: true,
+    writable: true,
+    value: 'bar'
+  });
+  Object.defineProperty(this, "y", {
+    configurable: true,
+    enumerable: true,
+    writable: true,
+    value: void 0
+  });
+};
+
+Object.defineProperty(Bork, "a", {
+  configurable: true,
+  enumerable: true,
+  writable: true,
+  value: 'foo'
+});
+Object.defineProperty(Bork, "b", {
+  configurable: true,
+  enumerable: true,
+  writable: true,
+  value: void 0
+});
+```
+
+However, with `{ "loose": true }`, it will compile using assignment expressions:
+
+```js
+var Bork = function Bork() {
+  babelHelpers.classCallCheck(this, Bork);
+  this.x = 'bar';
+  this.y = void 0;
+};
+
+Bork.a = 'foo';
+Bork.b = void 0;
+```
+
+## References
+
+* [Proposal: ES Class Fields & Static Properties](https://github.com/jeffmo/es-class-static-properties-and-fields)