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babel-plugin-transform-es2015-arrow-functions
Advanced tools
Readme
Compile ES2015 arrow functions to ES5
In
var a = () => {};
var a = (b) => b;
const double = [1,2,3].map((num) => num * 2);
console.log(double); // [2,4,6]
var bob = {
_name: "Bob",
_friends: ["Sally", "Tom"],
printFriends() {
this._friends.forEach(f =>
console.log(this._name + " knows " + f));
}
};
console.log(bob.printFriends());
Out
var a = function a() {};
var a = function a(b) {
return b;
};
var double = [1, 2, 3].map(function (num) {
return num * 2;
});
console.log(double); // [2,4,6]
var bob = {
_name: "Bob",
_friends: ["Sally", "Tom"],
printFriends: function printFriends() {
var _this = this;
this._friends.forEach(function (f) {
return console.log(_this._name + " knows " + f);
});
}
};
console.log(bob.printFriends());
npm install --save-dev babel-plugin-transform-es2015-arrow-functions
.babelrc
(Recommended).babelrc
// without options
{
"plugins": ["transform-es2015-arrow-functions"]
}
// with options
{
"plugins": [
["transform-es2015-arrow-functions", { "spec": true }]
]
}
babel --plugins transform-es2015-arrow-functions script.js
require("babel-core").transform("code", {
plugins: ["transform-es2015-arrow-functions"]
});
spec
- This option wraps the generated function in .bind(this)
and keeps uses of this
inside the function as-is, instead of using a renamed this
. It also adds a runtime check to ensure the functions are not instantiated.FAQs
Compile ES2015 arrow functions to ES5
The npm package babel-plugin-transform-es2015-arrow-functions receives a total of 1,113,808 weekly downloads. As such, babel-plugin-transform-es2015-arrow-functions popularity was classified as popular.
We found that babel-plugin-transform-es2015-arrow-functions demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 6 open source maintainers collaborating on the project.
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Research
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