TypeError: Cannot read property 'type' of undefined

[Novynn]

Came across this problem while trying to optimize a script that requires vue-router@3.0.1. It looks like this line is the culprit:

r.js/build/jslib/parse.js

Line 939 in 1752638

if (bodyNode.consequent && bodyNode.consequent.body) {

I've fixed it locally by adding && bodyNode.consequent.body.length to the end of the if statement linked because consequent.body is an object not an array in this case ({type: 'BlockStatement', body: {...}}).

[pinuchfab]

Hello, we had the same problems recently while bundling yfiles.
Would this fix be released in a new version of requirejs from the jquery legacy team?
Regards
Fab

[anandthakker]

I'm seeing this, too, when we optimize a project where one of the included modules is itself a library that was built using r.js (and minified). I can reproduce the error by replacing that module with just this minimal bit of code:

(function () {
  if (typeof define !== 'undefined') for (;;) {
  }
})()

[senthilkumar04]

Facing the same type error issue while bundling the packages using r.js
TypeError: Cannot read property 'type' of undefined

Is there any updates from the requirejs library for this issue ?

@Novynn Did you find any work around for this issue ?

[prantlf]

I maintain a fork using a modern JavaScript parser and enhanced source map support as @prantlf/requirejs. I merged #1005 fixing this problem. Thank you!