CODEWITHSUNDEEP
javascriptgoogle-apps-script
HardScale
HardScale

Reputation: 1021

Script debugger reports "operation not allowed"

I have a simple project that does some generic array calculations and returns the result in a grid. I needed a short way to scan an array for the maximum value and tried using this:

var max = Math.max.bind( Math.max );
var vector_max = Function.apply.bind( max, null );

Now, this works great when I am not debugging. But, if I wrap a test function around any statement, like, say:

function tester() {
  var r = 0;
  return r;
}

..., set a breakpoint anywhere in this function, and click debug, I get an error:

"Typeerror: This operation is not allowed. (line XXX, file xxx)"

This happens even in a completely new script attached to an empty sheet. Of course, Google has no documentation on their script debugger and no references to any limitations, so, I am totally in the dark.

Any ideas?

Upvotes: 4

Views: 268

Answers (1)

Henrique G. Abreu
Henrique G. Abreu

Reputation: 17792

I can also reproduce this. It indeed seems like a bug in the debugger! :)

You should report this in the Apps Script issue tracker. And in the mean time use another implementation for your vector_max function to debug your code. For example:

function vector_max(a){ return a.reduce(function(r,v){ return r < v ? v : r; }, -Infinity); }

Upvotes: 2

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