grp.getvalue() returned value

[Kapudan]

Hi all,

here a very simple question.
What type of data does grp.getvalue() return?

I didn't understand why this code works
    
    variable  = grp.getvalue('1/1/1')
    if (variable == true) then...    

while this not

    variable  = grp.getvalue('1/1/1')
    if (variable == 1) then ...


1/1/1 is defined on LM as 01.001 Switch

[admin]

For 01.X types it returns a Boolean value (true/false). In Lua true does not equal 1.

[Kapudan]

Thanks.

For the future... where can I find such informations to avoid similar silly questions? :-)

That's what the reference manual says:
"Returns value for the given alias or nil when object cannot be found."

[admin]

This is more of a Lua language thing. As described in the manual:
Equality (==) first compares the type of its operands. If the types are different, then the result is false (https://www.lua.org/manual/5.1/manual.html#2.5.2)
This is what happens if you try to compare true or false to 1.

[Kapudan]

Ok, sorry for my unclear question.

What I meant was: where can I find the information that grp.getvalues() method returns a boolean value (true/false) if the reference manual only says "Returns value for the given alias or nil when object cannot be found."?

[admin]

The value type depends on the datatype. In most cases it will be a number but can also be a Boolean, string or table. You can use log(value) to see what the function returns.