Returns a stack variable. The stack is created if not found.
| Data signatures |
|---|
| stack( stack name: |
| Call signatures |
|---|
| stack( stack name: Variable ǁ Header ǁ Function ǁ Reference ǁ Term ) |
| Purpose | Value |
|---|---|
| Main focus | stack() is a side-effect |
| Context | Qualifier |
|---|---|
| Match qualifiers | onmatch |
| Value qualifiers | onmatch |