Brain.js: Error when calling trainAsync

[ximik753]

What is wrong?
When I try to call the trainAsync method, I get a strange error in the console [Object object]

How do we replicate the issue?

Sample code where a similar issue occurs: https://codepen.io/ximik753/pen/pobzJgQ

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[mubaidr]

Confirmed. Looks like bug in one of the dependency.

TypeError: _thaw2.default is not a constructor
 in brain.js/dist/neural-network.js — line 599

[tripolskypetr]

I can suggest a hot fix. Open file node_modules/brain.js/src/neural-network.js. Then change the first line

const { Thaw } = require('thaw.js');

To this

const { Thaw } = require('thaw.js/dist');