Joins values into a single string using a delimiter.
The first argument is the delimiter; all remaining arguments are the values to join. Non-string values are converted to text automatically.
Examples
textjoin(', ', 'a', 'b', 'c') → 'a, b, c'
textjoin('-', 1, 2, 3) → '1-2-3'
textjoin(' ', first, last) → 'Jane Doe' (when first is 'Jane', last is 'Doe')