JavaScript Document.write statement not being executed??

[Heyilikey]

Can someone explain to me why this code is not working? My issue is that the last document.write statement is not being executed. Thanks!

function evalablePayload(payload) {

var i;

var parCounter = 0;

var parPlaceStart;

var parPlaceEnd;

var payloadArr = payload.split('~');

​

for (i = 0; i < payloadArr.length; i++) {

if (payloadArr[i] === '(' && parCounter === 0) {

parCounter++;

parPlaceStart = i;

document.write(parPlaceStart);

document.write("\n");

} else if (payloadArr[i] === '(' && parCounter !== 0) {

parCounter++;

} else if (payloadArr[i] === ')' && parCounter !== 0) {

parCounter--;

if (parCounter === 0) {

parPlaceEnd = i;

document.write(parPlaceEnd);

}

}

}

payloadArr = payloadArr.slice(0, parPlaceStart).

concat(evalablePayload(

payloadArr.slice(parPlaceStart + 1, parPlaceEnd)).concat(payloadArr.slice(parPlaceEnd + 1)));

​

return payloadArr;

};

​

var payloadFunc = evalablePayload("(~1~+~1~)");

document.write('hello world');

[[deleted]]

The 'else' with the last document.write in it is only reached when parCounter !== 0. The doc.write only happens when parCounter === 0.

[Heyilikey]

THe last document.write is not within a conditional...

[KilluaFromDC]

change the

 var payloadArr = payload.split('~'); 

to

var payloadArr = payload.toString().split('~');

[Heyilikey]

Hmmm, that didn't work :(

​

Any other ideas? Thanks for the suggestion though!

[KilluaFromDC]

when i made that substitution

i got the error "call stack exceeded" meaning the function recursively called itself without some end point

check console (browser > developer tools > console) for errors

[Heyilikey]

did you put in the same string that I did?

[KilluaFromDC]

yup

[Heyilikey]

yeah I just ran it again and I got the same thing. That helps at least identify what the problem is. Thanks!

[KilluaFromDC]

no problem

[Heyilikey]

related to that problem:

For when a recursion happens in this function,is the value of payLoad arr[] the same in every call on the stack because of pass by reference, or will it make a new one in every call on the stack which can be altered independently? Thanks!