Browserify: Object spread fails with unexpected token

[ghost]

spread/rest doesn't seem to work:

let foo = {somevar: 'test'}
let bar = {test: 'test'}
let baz = {...foo, ...bar}

browserify foo.js

foo.js:3
let baz = {...foo, ...bar}
           ^
ParseError: Unexpected token

[zdychacek]

Hi,

this issue is caused by underlying acorn parser which does not support this syntax feature currently.

Just now, you have tree choices how to solve this issue:

• wait till acorn supports this syntax
• patch acorn with https://github.com/UXtemple/acorn-object-spread
• use this fork, which use babylon as the parser under the hood: https://github.com/zdychacek/node-browserify. And then run this command: $ browserify-babylon src/app.js -o dist/out.js -t [ babelify ] --parser-plugins [ objectRestSpread ]

[goto-bus-stop]

fixed by https://github.com/browserify/browserify/commit/7c3e585a83050f28291efc2dbd2407582cc5beb4, which includes this patch: https://github.com/browserify/detective/commit/c1e42dae473479394da5c6f5a79ad7b422a22fae