purpose | select all values of variables named in the input titles |
---|---|
input | a selection of variable names |
parameter | ignored |
output | the values of each of the variables named in the input titles (or blank if the variable is not defined) |
Learn more about how to use Filters
Introduced in v5.1.20 The usual way to retrieve a variable value within a filter is with the angle brackets notation. For example, [<currentTiddler>]
will retrieve the value of the variable called currentTiddler
.
The getvariable
filter operator provides an alternative way to retrieve a variable. For example, [[currentTiddler]getvariable[]]
is another way to retrieve the value of the variable currentTiddler
.
The advantage of getvariable
is that it makes it possible to work with variables whose name is computed, and not known in advance. For example, [<myvariable>getvariable[]]
gets the value of the variable whose name is given in the variable myvariable
.