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# announcements

[Mani]

Screen Shot 2019-10-11 at 2.57.02 PM.png

[Luca Nicoletti]

What’s the error?

[Luca Nicoletti]

It looks like it’s not able to evaluate the type of that lambdas

[Mani]

variable must be initialized

[Mani]

trying to write a strategy pattern

[Luca Nicoletti]

Just move them before the map 🙂

[diesieben07]

(nvm, i was being blind)

[Mani]

Shitt!! Thats why I should stop writing code while drunk

[Mani]

🙂

[Mani]

thanks guys

[Mani]

so to invoke this I just need to do .invoke with params, right?

[Luca Nicoletti]

or just function()

[Mani]

function() is old fashioned 😛 JK

[Luca Nicoletti]

there’s no .

[Luca Nicoletti]

Just use the var name with ()

[Mani]

🕺

[diesieben07]

(which is a convention-operator for .invoke())

[Luca Nicoletti]

I’d rather avoid going with function.invoke() when I can go with function()

[diesieben07]

Definitely. It's just good to know what it does under the hood. This way you can add this operator to your own classes as well, if you need to.

[Mani]

Cant see the error but it still says 1 error found, help

[Luca Nicoletti]

line 12

[Luca Nicoletti]

missing ->

[Luca Nicoletti]

🤦🏼‍♂️ those are not questions which are meant to end up here. Com’on!

[Mani]

Time to shut my system for somtime🤐