Pcall Question

[stoic nimbus]

Hi! I know what a pcall does, but I'm kinda stuck on how to use it in an actual game. I know it creates a protected function, but when is this necessary (with examples, preferred)? I would love some feedback!

[balmy night]

local function someError()
    error("Im not working")
end

local function noError()
    local something = 2
    return something
end

local success, result = pcall(someError)
local success, result = pcall(noError)

so in one function theres an error, success is aboolean (true or false) and result is either the error message or the actual return from the function.

If you would print result in the first function it would print the error ("Im not working" and in the other function it would print the variable something.

@stoic nimbus

[crisp charm]

Pcalls should be used for saving data and loading it. And you can also use them for unstable code.

[shy jasper]

pcall is used for protecting the call obviously

ok but other than that

when people do local success, result = pcall(function()

success would be a boolean

i mean

result

forgot which one

[balmy night]

no its the other way around its for unstable code and it CAN be used for saving data 😭

[crisp charm]

mb im pretty new to it aswell! Thank you for correcting me

its just the way i have been using them until now

but which other secure way could you use to save data without a pcall?

[shy jasper]

profileservice

the actual module profileservice prob has it

[balmy night]

profileservice surely also uses pcall in their source code..

[shy jasper]

not when you have to like actually make the script

[balmy night]

ye

[shy jasper]

6 pcalls

[crisp charm]

but what would be a way to save data without pcalls then

[shy jasper]

impossible? idk

just remove the pcall part and see what happens

frfr

[crisp charm]

💔

[balmy night]

you don't necessarily need pcalls they just make it "safer"

[crisp charm]

ig.