table to string

[ZenLunatic]

I couldn't find how i could create a string from table elements, so I wrote this function



function tableToString(TABLE, STRING, SEPARATOR)
tableLength = Table.Count(TABLE);
--create blank string
STRING = "";
for count = 1, tableLength do
--add table element to string and insert a space at the end
STRING = STRING..TABLE[count].." ";
end
return STRING;
end


It seems like it should work, but when I try to use it with this



myTable = {"one", "two", "three", "four"};

tableToString(myTable, myString, " ");
Paragraph.SetText("Paragraph1", myString);


I get an error that myString isn't a string.

any ideas/tips/help/!

[Worm]

use Table.Concat()



myTable = {"one", "two", "three", "four"};

sTable = Table.Concat(myTable, " ", 1, TABLE_ALL)
Paragraph.SetText("Paragraph1", sTable)

[Worm]

To answer the question about the function. You are returning the value, so your function call should be set to a variable to recieve the returned value



myTable = {"one", "two", "three", "four"};

myString = tableToString(myTable, " ");
Paragraph.SetText("Paragraph1", myString);




function tableToString(TABLE, SEPARATOR)
tableLength = Table.Count(TABLE);
--create blank string
STRING = "";
for count = 1, tableLength do
--add table element to string and insert a space at the end
STRING = STRING..TABLE[count].." ";
end
return STRING;
end

[ZenLunatic]

use Table.Concat()



myTable = {"one", "two", "three", "four"};

sTable = Table.Concat(myTable, " ", 1, TABLE_ALL)
Paragraph.SetText("Paragraph1", sTable)


That works.. I didn't even look at it since I thought it was a function to concat two tables!

thanks

[ZenLunatic]

To answer the question about the function. You are returning the value, so your function call should be set to a variable to recieve the returned value



function tableToString(TABLE, SEPARATOR)
tableLength = Table.Count(TABLE);
--create blank string
STRING = "";
for count = 1, tableLength do
--add table element to string and insert a space at the end
STRING = STRING..TABLE[count].." ";
end
return STRING;
end


With that function, however, the function could only be used once (unless you want to redeclare STRING) since the returned string will be named STRING in all uses of the function. That's why I had a spot to name the string in the original function.

[Worm]

Not so. You're initializing STRING to nothing, (STRING = "";) in your function. That clears the variable from any previouse values. You could also use:

local STRING

which keeps the variable from being Global and also only keeps the values for that instance of the function.

[ZenLunatic]

so once the string is retuned through the function, what do you call it?

[Worm]

when you return a value from a function, you use a variable to hold the returned values. Similar to the the way most of AMS actions are. You can return a table, a string, a number, even multiple variables.



function Sample()
return "ABC"
end

--sample function call
sMyVariable = Sample()

--sMyVariable will be equal to the returned value of the function
--in this case "ABC"
Dialog.Message("Test", sMyVariable)

[ZenLunatic]

ahhh.. i see. Thanks :)