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babel-plugin-transform-es2015-arrow-functions

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babel-plugin-transform-es2015-arrow-functions

Compile ES2015 arrow functions to ES5

  • 6.22.0
  • latest
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  • npm
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What is babel-plugin-transform-es2015-arrow-functions?

The babel-plugin-transform-es2015-arrow-functions package is a Babel plugin that transforms ES2015 (ES6) arrow functions into ES5 function expressions. This is useful for ensuring compatibility with environments that do not support ES2015 syntax.

What are babel-plugin-transform-es2015-arrow-functions's main functionalities?

Transform Arrow Functions

This feature transforms ES2015 arrow functions into ES5 function expressions. This is particularly useful for ensuring that your code runs in environments that do not support ES2015 syntax.

const add = (a, b) => a + b;
// Transformed to:
var add = function(a, b) {
  return a + b;
};

Lexical 'this' Binding

Arrow functions do not have their own 'this' context and instead inherit 'this' from the parent scope. This feature ensures that the 'this' context is correctly bound when transforming arrow functions to ES5.

const obj = {
  value: 10,
  increment: function() {
    setTimeout(() => {
      this.value++;
    }, 1000);
  }
};
// Transformed to:
var obj = {
  value: 10,
  increment: function() {
    var _this = this;
    setTimeout(function() {
      _this.value++;
    }, 1000);
  }
};

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Package last updated on 20 Jan 2017

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