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# @babel/plugin-transform-exponentiation-operator
> Compile exponentiation operator to ES5
## Example
**In**
```javascript
let x = 10 ** 2;
x **= 3;
```
**Out**
```javascript
let x = Math.pow(10, 2);
x = Math.pow(x, 3);
```
## Installation
```sh
npm install --save-dev @babel/plugin-transform-exponentiation-operator
```
## Usage
### Via `.babelrc` (Recommended)
**.babelrc**
```json
{
"plugins": ["@babel/plugin-transform-exponentiation-operator"]
}
```
### Via CLI
```sh
babel --plugins @babel/plugin-transform-exponentiation-operator script.js
```
### Via Node API
```javascript
require("@babel/core").transform("code", {
plugins: ["@babel/plugin-transform-exponentiation-operator"]
});
```
## References
* [Proposal: Exponentiation Operator](https://github.com/rwaldron/exponentiation-operator)
* [Spec: Exponential Operator](https://rwaldron.github.io/exponentiation-operator/)