length for filters
Count the number of items in an input list, rows in a table, or bytes in binary data.
Signature
> length {flags}
Input/output types:
| input | output |
|---|---|
| binary | int |
| list<any> | int |
| nothing | int |
Examples
Count the number of items in a list
> [1 2 3 4 5] | length
5Count the number of rows in a table
> [{a:1 b:2}, {a:2 b:3}] | length
2Count the number of bytes in binary data
> 0x[01 02] | length
2Count the length a null value
> null | length
0