<join>
join is used to combine a list of elements into a single formatted text string.
This short-lived tag evaluates input assigned to its default field, and returns output. It does not yield an object.
It accepts a list of data elements and combines them together, with an optional delimiter between each element.
Fields
The default field should be assigned a list of data elements (e.g. a reference to a vector).
A named field, delim, can also be defined on this tag. This field accepts a single text value. If set, the delim text string will be inserted as a separator between each of the combined elements in the output result.
Example
<var:vector 1,10,true,{Hey!}> <! define a vector object named vec with mixed data elements !>
<putln <join var>> <! outputs {110trueHey!} back to the running program or TTY !>
<putln <join var delim={ and }> <!outputs: {1 and 10 and true and Hey!} !>