• Version: Node 10.0.0
• Platform: Debian GNU/Linux 8.10 (jessie)

Node 10.0.0 yields an unexpected result when functions are converted to strings through the toString method. Here's what happens:

• 10.0.0: (function () { }).toString() results in: 'function () { }'.
• 9.5.0: (function(){ }).toString() results in: 'function (){ }'.

This difference seems insignificant, but it affects several critical NPM modules. One example is: promisify-node, here's a relevant issue that I created in that repo: nodegit/promisify-node#28

Of course, this means that many other NPM repos are being affected, such as: nodegit. Here's the issue I created for them: nodegit/nodegit#1490

Within the other affected modules, we have: nodegit-promise, asap, fbjs, eslint-plugin-react, and so on and so forth.