The Whiteboard

user55340

11:00 PM

> StepTalk, GNUstep scripting framework uses Smalltalk language on an Objective-C runtime

Jimmy Hoffa

@MichaelT I presume it means it gets the language but not the super rockin neato IDE?

user55340

It means it plays in the same runtime, which means that you can mix the two.

Jimmy Hoffa

@MichaelT I guess this means you could use a SmallTalk browser if it was written in SmallTalk and then have that browser run Objective-C also? Maybe? Doubtful..

user20683

@JimmyHoffa no

user20683

kinda

Jimmy Hoffa

11:05 PM

holy crap now there's a project idea... @FrostEngineer you like working with UI? Have you ever used a SmallTalk and seen it's browser? the functionality I just spoke of; how about a Haskell Browser: realtime live GUI application editing except the code is all Haskell O_O

Matt D

interesting

Jimmy Hoffa

I love it... you should go do it with all your front-end development enjoyment

Matt D

realtime editing is awesome

and ont hat note, time to get a coffee and get some work done

user20683

@JimmyHoffa Haskell -> JQuery?

Jimmy Hoffa

Prolog would be another good choice as it is often treated as a live rules editing and querying environment already

Matt D

11:06 PM

or css/html

which if you're going to do UI. you really should be thinking about

user20683

@JimmyHoffa why not combine the two and do Mercury?

Jimmy Hoffa

@WorldEngineer Sure, you could step it to JavaScript for the UI, I was thinking more like SmallTalk; it has it's own UI presentation functionality. You could use one of Haskell's libraries for the presentation pieces, put an API over it that makes it realtime

user20683

@JimmyHoffa You assume I know Haskell far better than I actually do :)

Jimmy Hoffa

@WorldEngineer Nah, I just assume you could figure it out if you really tried

Matt D

well, i've been thinking abou css3/html5/js for UI's as you'd get a lot of portability

within reason

user20683

11:08 PM

@JimmyHoffa when I have a job

user20683

then I will have all kinds of crazed side projects

Jimmy Hoffa

@MattD Yeah and porting Haskell down to JS really isn't difficult, you might want to make it a Haskell subset more like DumbML or something

but it's been done already

user20683

@JimmyHoffa or just use the existing port

Jimmy Hoffa

@WorldEngineer Use whatever, just go play with Pharo and think about how you could make that for Haskell :D

user20683

@JimmyHoffa no windows atm

user20683

11:11 PM

and I don't think mono supports it

user20683

also mono doesn't like my machine

Jimmy Hoffa

@WorldEngineer Pharo is Windows, Linux, and MacOS

user20683

ah

Jimmy Hoffa

pharo-project.org/home

user20683

puts on his list to learn after RoR, Django, and various JS stuff

Jimmy Hoffa

11:13 PM

;) any movement on the interviews front?

Have you been submitting your resume to every job on Monster and Dice you run across?

user20683

@JimmyHoffa not as yet

user20683

need to seriously revamp my strategies

user20683

@JimmyHoffa not as yet

user20683

also it needs to quit raining

user20683

I've got work to do

Jimmy Hoffa

11:14 PM

"Senior WIQL Developer? Submit.", "Junior Goomba Instructor (uses programming)? Submit."

haha there ya go

user20683

I do know what the HTTP verbs are now

user20683

quiz me if you feel inclined

user55340

Select the verbs from this list: put, get, send, post, patch, update

user55340

Of the verbs, which ones are idempotent?

user20683

put post get patch

user20683

11:18 PM

get and post are idempotent as I recall

user20683

get I know is because it's just reading

user15026

I need to find more things to apply to.

Robert Harvey

@JimmyHoffa No, that wasn't me. I probably did some hand-waving about message passing.

user55340

(Actually, the list of Idempotent methods: get, head, put, delete)

user55340

w3.org/Protocols/rfc2616/rfc2616-sec9.html - 9.1.2

user20683

11:20 PM

@MichaelT I confused put and post

user55340

post an update, put (replace) a record.

user20683

CRUD

Robert Harvey

Galbraith Hills Police Department?

user20683

@RobertHarvey network connections gone weird

user55340

@WorldEngineer Create, Replicate, Append, Process

2

user20683

11:22 PM

@MichaelT of the verbs, get and head must be implemented and options must be if possible

psr

@MichaelT update not being idempotent is a little weird, but I guess they should be allowed to put a timestamp, etc.

Jimmy Hoffa

A surprising number of people would get weeded out with "What is a pointer?" in phone screens... I was completely floored by this fact and how terrible the answers were

user55340

@psr Think of multiple postings on a comment... keep hitting "post"

Jimmy Hoffa

Nobody could simply say "A memory space with the value of a memory address."

user55340

Realize that Crud apps are the Bread (Browse, Read, Edit, Add, Delete) and butter of most programs.

Robert Harvey

11:24 PM

JAVA -- Just Another Verbose Acronym.

psr

@MichaelT And you don't have to update all the fields. Duh.

Jimmy Hoffa

@MichaelT BUTTER (Buy, Update, Trend, Trend!!, Entrepreneurize, RETAIL)

user55340

Two of my co-workers were recently arguing about patch vs put vs post for some api and which it should be.

user20683

Hype: Huge Yuppie Preliminary Excitement.

Jimmy Hoffa

@MichaelT REST is so much less black and white than all the hipsters would have you think as they wave books around and such

user20683

11:26 PM

@JimmyHoffa You could sleep or nap or doze or snooze or have a siesta.

user55340

Anyways... 5:30 and I've been doing gson serilization... I need to look away from it now.

Jimmy Hoffa

@FrostEngineer so now you know the HTTP verbs, the next trivia for a web developer is often times something about what's the root element of a SOAP message, though that might be dated at this point...

user20683

@JimmyHoffa self.clean() :P

psr

@JimmyHoffa I've done SOAP related development and can't recall at all. And I can't see how it matters.

Jimmy Hoffa

@psr It doesn't at all. It's stupid interview trivia that people ask.

psr

11:31 PM

@JimmyHoffa Sigh.

Jimmy Hoffa

Envelope "oo! ahhh!" yeah, whatever. It's about as useful to ask as what parameters on the dir command show you hidden files

Still, I was always surprised when asking people what the HTTP verbs were and they were always like "well there's 404 and 500 I think" or totally off the wall stuff "you start with <html> then there's the <head>..."

psr

@JimmyHoffa Envelope. It's... so beautiful... it's all so clear now. What a fool I've been!

Jimmy Hoffa

sometimes those trivia questions get people to just self-incriminate

but at that point they're stand-ins like a rorshach test

psr

The HTTP verbs are a better question, basic but not all trivia.

user20683

200 is all clear, 400s are routing errors, 500s are server errors, I want to say 300s are redirects?

Jimmy Hoffa

11:35 PM

@WorldEngineer 302 is redirect, but i don't know that all 300s are redirects

400s encapsulate auth errors too if I'm not mistaken

psr

@JimmyHoffa I can imagine that. That makes sense.

Jimmy Hoffa

but you got the gist and know the codes as well as anyone needs to at that

@psr You would be baffled at the answers I've heard to "What's a pointer?"

psr

@JimmyHoffa "I've written the answer on this piece of paper".

Jimmy Hoffa

I'm a copious taker of notes, especially during interviews, I wish I still had some of my old notepads from that stuff...

Matt D

400 is "you did something wrong"

500 is "server did something wrong"

psr

11:40 PM

@JimmyHoffa Someone could always B.S. by saying "I put that in a library and it worked so I never had to look at it again". It could reasonably apply to most trivia.

Matt D

heh

Jimmy Hoffa

@psr If they say that about a pointer I think they just self-incriminated

Matt D

i think about c/c++ development in terms of memory. so pointers are like. sure. no problem

im also weird

psr

@JimmyHoffa What a pointer is, isn't trivia. It's basic, but not trivia.

Jimmy Hoffa

@MattD I would fail-fast at doing anything pointer related, but I at least know what the hell a pointer is, I had people answer with "Hmm... I don't know." and "That star thingy?" and "It points at stuff, like maybe a file?"

user20683

11:42 PM

I have a whole book on pointers in C

user20683

pointers are memory addresses

Matt D

not always

user20683

the pointer operator allows you to access pointers

user20683

@MattD true but in most cases that's correct enough. Could also be a memory mapped IO, a UART, serial whatevers, etc

Jimmy Hoffa

WAT is with all these constructor questions today???

Matt D

11:45 PM

its more a convention amongst cpu's that a "pointer" ends up being the actual address.

Jimmy Hoffa

0

Q: Where should an object in CQRS+ES be fully initialized: in the constructor, or when applying the first event?

There appears to be widespread agreement in the OOP community that the class constructor should not leave an object partly or even fully uninitialized. What do I mean by "initialization"? Roughly speaking, the atomic process that brings a newly created object into a state where all of its cl...

Matt D

it doesnt have to be, (and especially in the c/c++ standard it isnt)

Jimmy Hoffa

2

Q: Is there an object-oriented programming language supporting collective constructors?

I was recently considering that sometimes several objects depend on each other (e.g. if they contain cyclic references) and therefore it would be useful to create them as part of one atomic operation that makes sure that, after construction, the new objects fulfil some collective constraint. In ...

programming-languages object-oriented

4

Q: how complex a constructor should be

I am having a discussion with my co-worker on how much work a constructor can do. I have a class, B that internally requires another object A. Object A is one of a few members that class B needs to do its job. All of its public methods depends on the internal object A. Information about object A ...

c# constructors

6

Q: Can we live without constructors?

Let's say in some reason all objects are created this way $obj = CLASS::getInstance(). Then we inject dependencies using setters and perform starting initialization using $obj->initInstance(); Are there any real troubles or situations, which can't be solved, if we won't use constructors at all? ...

php object-oriented-design class-design

those are all from today.

??? Constructor convention in town?

Did I miss some important reddit post or something?

3 days ago was the last constructor question, and before that one it was 4 days pryor... then today we get 4 constructor questions

user20683

I'm gonna call that a coincidence

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