babel-plugin-transform-decorators
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Compile class and object decorators to ES5
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# babel-plugin-transform-decorators
> Compile class and object decorators to ES5
## Example
(examples are from proposal)
### Simple class decorator
```js
@annotation
class MyClass { }
function annotation(target) {
target.annotated = true;
}
```
### Class decorator
```js
@isTestable(true)
class MyClass { }
function isTestable(value) {
return function decorator(target) {
target.isTestable = value;
}
}
```
### Class function decorator
```js
class C {
@enumerable(false)
method() { }
}
function enumerable(value) {
return function (target, key, descriptor) {
descriptor.enumerable = value;
return descriptor;
}
}
```
## Installation
```sh
npm install --save-dev babel-plugin-transform-decorators
```
## Usage
### Via `.babelrc` (Recommended)
**.babelrc**
```json
{
"plugins": ["transform-decorators"]
}
```
### Via CLI
```sh
babel --plugins transform-decorators script.js
```
### Via Node API
```javascript
require("babel-core").transform("code", {
plugins: ["transform-decorators"]
});
```
## References
* [Proposal: Javascript Decorators](https://github.com/wycats/javascript-decorators/blob/master/README.md)