EsNext doesn't convert var into let or const

[ferrybig]

Since let and const are new since ES6, EsNext should convert them. But it doesn't at the moment:

var memoize = require('lodash').memoize;

var upperCase = memoize(function(string) {
  return string.toUpperCase();
});

Becomes

import { memoize } from 'lodash';

var upperCase = memoize(function(string) {
  return string.toUpperCase();
});

While it should have been:

import { memoize } from 'lodash';

const upperCase = memoize(function(string) {
  return string.toUpperCase();
});

Version: Using the EsNext playground

[eventualbuddha]

Hmm. I think it might just be that the playground is out of date. Have you verified this on your own machine? I get this after installing esnext globally:

❯ esnext <<EOS
heredoc> var memoize = require('lodash').memoize;

var upperCase = memoize(function(string) {
  return string.toUpperCase();
});
heredoc> EOS
import { memoize } from 'lodash';

const upperCase = memoize(string => string.toUpperCase());

[eventualbuddha]

Closing as this is no longer relevant to the project.