5to6
v0.0.3
Published
Convert (partial) ES5 to ES6
Downloads
15
Maintainers
Readme
Note: Experimental
5to6
Converts (partial) ES5 code to ES6. Converted files are expected to be used with ES6 transpilers like Babel.
Uses recast to get code's AST and detect then modify certain syntax to the equivalent in ES6. Semantics don't change, only the syntax.
Supported conversions
var b = {
abc: abc
}
=>
var b = {
abc
}
{
abc: function() {
console.log('a')
}
}
=>
{
abc() {
console.log('a')
}
}
module.exports = Component
=>
export default Component
var Foo = require('foo')
=>
import Foo from 'foo'
var Bar = require('foo').Bar
=>
import {Bar} from 'foo'
require('foo')
=>
import 'foo'
var Foo = require('foo')
var Bar = Foo.Bar
var Baz = Foo.Baz
=>
import Foo, {Bar, Baz} from 'foo'
Install
sudo npm install 5to6 -g
Usage
5to6 -s src # converts all js or jsx files in "src" folder (relative to current directory)
5to6 -s . # converts all js or jsx files in current directory
5to6 -s . -v # verbose mode
Caveats
This lib was initially created to convert a particular project's codebase to ES6, so it assumes certain code structure. If your codebase is using the commonjs style modules structure, it should work. Codebase with everything in one big closure will not work. Again, this lib is experimental.
5to6 directly writes to file after conversion. So it depends on git, not for conversion, but for reversion in case output is not as expected etc.
To revert conversion, simply run
git reset --hard