Function problem

[rubenbraekman]

Hello, a noob here, I'm trying to create a function that outputs a true or false depending on the situation.

When the number is positive the output has to be false and when the number is negative the output has to be true.

I get "Function tried to send a message of type number" as output.

[Steve-Mcl]

return msg;

The function must always return a msg object.

https://nodered.org/docs/user-guide/writing-functions#writing-a-function

[rubenbraekman]

Now it outputs the same number as the input.

[Steve-Mcl]

msg.payload = true

msg.payload = false

[softy2k]

msg.payload = true , NOT msg.payload === true
Same for false

[jbudd]

One = is an assignment msg.payload = "hello" (Make payload equal hello)
Two or three = is a comparison : msg.payload === "hello" (Does payload equal hello?)

[rubenbraekman]

Thanks for helping a beginner steve, that worked.