FirstLine / String Layer
Extract the first line from multi-line strings. Similar to Python's str.splitlines()[0] or getting the first line in file processing. Returns null for empty strings.
Common applications:
- Extracting headers
- Reading titles
- Processing log entry timestamps
- Getting primary record identifiers
- Extracting summaries
- Reading first line of configurations
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Table
Select
columnThe string column containing multi-line text. Examples:
- Headers: 'Title\nContent' → 'Title'
- Log entries: 'Time: 12:00\nDetails...' → 'Time: 12:00'
- Records: 'ID: 123\nName: John' → 'ID: 123'
- Empty first line: '\nContent' → ''
AsColumn
nameName for the new column. If not provided, the system generates a unique name. If AsColumn matches an existing column, the existing column is replaced. The name should follow valid column naming conventions.