bdambrosio Is Empty
Check whether text contains meaningful content or is effectively empty.
Purpose
- Validate note content exists
- Enable conditional logic in plans
- Filter out empty results
- Guard against null/missing data
Input Format
Accepts:
- Plain text string
- Note content
Parameters
None.
Output Format
Returns boolean:
Trueif text is null, empty string, or only whitespaceFalseif text contains any non-whitespace content
Usage Examples
Basic validation:
{"type":"is-empty","target":"$result","out":"$is_empty"}
Used in conditional:
{"type":"is-empty","target":"$search_results","out":"$no_results"}
Guidelines
- Treats null, empty string, whitespace-only as empty
- Newlines, tabs, spaces count as whitespace
- Any visible character makes content non-empty
Examples
Empty cases:
null → true
"" → true
" " → true
"\n\t \n" → true
Non-empty cases:
"Hello" → false
" x " → false
"0" → false