acorn-es6
Support many ES6 features with no runtime requirements. Sometimes this results in more code, but it provides a much cleaner build system. Things like Map, Set, Symbol etc. must be polyfilled separately if you wish to use them. This module only aims to provide syntax extensions.
Installation
npm install acorn-es6
Usage
var compile = require('acorn-es6');
var compiled = compile('var log = msg => console.log(msg);');
// => "var log = function (msg) { console.log(msg); };"You can also use it as a browserify transform by specifying the transform as acorn-es6/browserify.
Supported ES6 features
arrowFunctions
var log = msg => console.log(msg);defaultParameters
function logDeveloper(name, codes = 'JavaScript', livesIn = 'USA') {
console.log('name: %s, codes: %s, lives in: %s', name, codes, livesIn);
}forOf
for (var element of [1, 2, 3]) {
console.log('element:', element);
}propertyMethods
var object = {
prop: 42,
// No need for function
method() {
return this.prop;
}
};templateLiterals
var x = 5, y = 10;
console.log(`${x} + ${y} = ${ x + y}`);
// 5 + 10 = 15restParameters
function printList(listname, ...items) {
console.log('list %s has the following items', listname);
items.forEach(function (item) { console.log(item); });
}spread
function add(x, y) {
console.log('%d + %d = %d', x, y, x + y);
}
var numbers = [5, 10]
add(...numbers);
// 5 + 10 = 15License
MIT
