Sha256: ca20c0641af826e64b4db5d8de3539a115f7558c415230726e6eb4831ff6d1f9
Contents?: true
Size: 759 Bytes
Versions: 8
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Contents
# babel-plugin-undefined-to-void
Some JavaScript implementations allow `undefined` to be overwritten, this
may lead to peculiar bugs that are extremely hard to track down.
This plugin transforms `undefined` into `void 0` which returns `undefined`
regardless of if it's been reassigned.
## Example
**In**
```javascript
foo === undefined;
```
**Out**
```javascript
foo === void 0;
```
## Installation
```sh
$ npm install babel-plugin-undefined-to-void
```
## Usage
### Via `.babelrc` (Recommended)
**.babelrc**
```json
{
"plugins": ["undefined-to-void"]
}
```
### Via CLI
```sh
$ babel --plugins undefined-to-void script.js
```
### Via Node API
```javascript
require("babel-core").transform("code", {
plugins: ["undefined-to-void"]
});
```
Version data entries
8 entries across 8 versions & 3 rubygems