Problem with E.toString

Trying process.memory to attempt a debug

//xtest2.js 27 Jan2018
// trying this on a Pico
//try changing the value of chk

// process.memory uncommented =PM
// comment out process.memory =NPM
///
// chk=1*1024 works both cases
// chk =2*1024 works with PM,fails NPM
// chk=25*1024 works with PM, fails NPM
// chk=26*1024 fails just too big
var n =100, chk=25*1024; 
var tdata=new Uint8Array(chk);

function xsend(a){
  console.log(n,a.length);
//  process.memory();// this makes it work
}//end xsend

function test(){
var a;
while (n){
  xsend(E.toString(tdata)); //fails if no process.memory
  n--;
}
}//end test

setTimeout(function () {
 test();
}, 1000);

The process.memory() fixes the bug.

 1v95 Copyright 2017 G.Williams
>
=undefined
100 25600
99 25600
98 25600
97 25600
Uncaught Error: Field or method "length" does not already exist, and can't create it on undefined
 at line 16 col 16
console.log(n,a.length);
               ^
in function "xsend" called from line 23 col 26
  xsend(E.toString(tdata)); //fails if no process.memory
                         ^
in function "test" called from line 1 col 6
test();
     ^
in function called from system
>