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# babel-plugin-transform-exponentiation-operator
> Compile exponentiation operator to ES5
## Example
```js
// x ** y
let squared = 2 ** 2;
// same as: 2 * 2
let cubed = 2 ** 3;
// same as: 2 * 2 * 2
// x **= y
let a = 2;
a **= 2;
// same as: a = a * a;
let b = 3;
b **= 3;
// same as: b = b * b * b;
```
## Installation
```sh
npm install --save-dev babel-plugin-transform-exponentiation-operator
```
## Usage
### Via `.babelrc` (Recommended)
**.babelrc**
```json
{
"plugins": ["transform-exponentiation-operator"]
}
```
### Via CLI
```sh
babel --plugins transform-exponentiation-operator script.js
```
### Via Node API
```javascript
require("babel-core").transform("code", {
plugins: ["transform-exponentiation-operator"]
});
```
## References
* [Proposal: Exponentiation Operator](https://github.com/rwaldron/exponentiation-operator)
* [Spec: Exponential Operator](https://rwaldron.github.io/exponentiation-operator/)
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"use strict";
exports.__esModule = true;
exports.default = function (_ref) {
var t = _ref.types;
return {
inherits: require("babel-plugin-syntax-exponentiation-operator"),
visitor: (0, _babelHelperBuilderBinaryAssignmentOperatorVisitor2.default)({
operator: "**",
build: function build(left, right) {
return t.callExpression(t.memberExpression(t.identifier("Math"), t.identifier("pow")), [left, right]);
}
})
};
};
var _babelHelperBuilderBinaryAssignmentOperatorVisitor = require("babel-helper-builder-binary-assignment-operator-visitor");
var _babelHelperBuilderBinaryAssignmentOperatorVisitor2 = _interopRequireDefault(_babelHelperBuilderBinaryAssignmentOperatorVisitor);
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
module.exports = exports["default"];
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{
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"type": "range"
},
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"_nodeVersion": "6.9.0",
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},
"_npmUser": {
"name": "hzoo",
"email": "hi@henryzoo.com"
},
"_npmVersion": "3.10.10",
"_phantomChildren": {},
"_requested": {
"raw": "babel-plugin-transform-exponentiation-operator@^6.22.0",
"scope": null,
"escapedName": "babel-plugin-transform-exponentiation-operator",
"name": "babel-plugin-transform-exponentiation-operator",
"rawSpec": "^6.22.0",
"spec": ">=6.22.0 <7.0.0",
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"_requiredBy": [
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"_resolved": "https://registry.npmjs.org/babel-plugin-transform-exponentiation-operator/-/babel-plugin-transform-exponentiation-operator-6.24.1.tgz",
"_shasum": "2ab0c9c7f3098fa48907772bb813fe41e8de3a0e",
"_shrinkwrap": null,
"_spec": "babel-plugin-transform-exponentiation-operator@^6.22.0",
"_where": "c:\\xampp\\htdocs\\laravel\\node_modules\\babel-preset-env",
"dependencies": {
"babel-helper-builder-binary-assignment-operator-visitor": "^6.24.1",
"babel-plugin-syntax-exponentiation-operator": "^6.8.0",
"babel-runtime": "^6.22.0"
},
"description": "Compile exponentiation operator to ES5",
"devDependencies": {
"babel-helper-plugin-test-runner": "^6.24.1"
},
"directories": {},
"dist": {
"shasum": "2ab0c9c7f3098fa48907772bb813fe41e8de3a0e",
"tarball": "https://registry.npmjs.org/babel-plugin-transform-exponentiation-operator/-/babel-plugin-transform-exponentiation-operator-6.24.1.tgz"
},
"keywords": [
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],
"license": "MIT",
"main": "lib/index.js",
"maintainers": [
{
"name": "amasad",
"email": "amjad.masad@gmail.com"
},
{
"name": "hzoo",
"email": "hi@henryzoo.com"
},
{
"name": "jmm",
"email": "npm-public@jessemccarthy.net"
},
{
"name": "loganfsmyth",
"email": "loganfsmyth@gmail.com"
},
{
"name": "sebmck",
"email": "sebmck@gmail.com"
},
{
"name": "thejameskyle",
"email": "me@thejameskyle.com"
}
],
"name": "babel-plugin-transform-exponentiation-operator",
"optionalDependencies": {},
"readme": "ERROR: No README data found!",
"repository": {
"type": "git",
"url": "https://github.com/babel/babel/tree/master/packages/babel-plugin-transform-exponentiation-operator"
},
"scripts": {},
"version": "6.24.1"
}