Error: "argsList.shift() is not a function"

[hqkirkland]

I'm sure it's because the project isn't complete yet, and it can't pull bytecode from_every_ DIR, but here's a DIR that I wanted to get bytecode for but couldn't.
t
I thought it was a little odd that I got that error instead of another. I'd research this further but I really don't know how to debug JavaScript correctly.

The DIR is attached in a ZIP, along with the original DCR. I used a special tool made by a friend, so I guess it's possible that the file isn't 100% converted.

chat_799.zip

[hqkirkland]

Ah and here's the full error.

Uncaught TypeError: argList.shift is not a function at Object.callobj (projectorrays.js:87) at Bytecode.translate (projectorrays.js:87) at Handler.translate (projectorrays.js:67) at LingoScript.translate (projectorrays.js:50) at OpenShockwaveMovie.linkScripts (projectorrays.js:16) at FileReader.reader.onload.e (projectorrays.js:13) callobj @ projectorrays.js:87 Bytecode.translate @ projectorrays.js:87 Handler.translate @ projectorrays.js:67 LingoScript.translate @ projectorrays.js:50 OpenShockwaveMovie.linkScripts @ projectorrays.js:16 reader.onload.e @ projectorrays.js:13 FileReader (async) OpenShockwaveMovie.readFile @ projectorrays.js:13 OpenShockwaveMovie @ projectorrays.js:12 createNewOpenShockwaveMovie @ projectorrays.js:93 onclick @ left.htm:15

[Brian151]

idk why we never replied to this @hqkirkland

idr if we discussed it on the discord server or not, but i'll bring it up!
sry for the not most particularly swift of replies...

that is a strange bug...
I honestly have no idea what's going there

as for the debugging of javascript, there's no proper way
you have to use the web console and hope that it displays something meaningful
console.log(obj.supposedMethod);

function(stuff){code;}
that's what you hope
JS is also especially bad at dealing with null/undefined (although, tbh, I side with the guy who said they're a[n expensive] mistake)
For example, when starting to write a parser for PFR, I miss-typed "length" as "lenth", and JS was so kind as to not throw an error until I tried to use the value I had supposedly read. The actual source of the error was in the code that gets said value from the arraybuffer (said value is an ascii string).
so, here's what happened:

1. a for loop had an incorrect variable name, but 'worked' cuz NaN
2. a function returned null
3. a DOM manipulation failed because the value it was adding to the element was null
4. execution halted
5. an error was thrown
   So, this logical program flow caused me quite a hassle tracking down the exact bug. While this is possible in any language, JS is especially notorious for it, and that happens even in strict mode. (speaking of which, i should enable)

anyways, I'll mention this [again???] on the discord server

[MrBrax]

isn't this just because the argslist is empty?

[hqkirkland]

Well thanks for the response! I haven't been able to use this since decommissioning my home server, but I may put it on a workstation my co. bought me.

[Brian151]

some quick messing around in the JS console:

var test = []
undefined
test.shift()
undefined
var test2 = null;
undefined
test2.shift()
TypeError: test2 is null
var test3 = new Uint8Array(16)
undefined
test3.shift()
TypeError: test3.shift is not a function

empty array still has shift()
null is null, does nothing
a typed array does NOT have shift()

But, I still don't know what's going on here...