dfr concat-str for expression

Creates a concat string expression.

Signature

> dfr concat-str (separator) (concat expressions)

Parameters

• separator: Separator used during the concatenation
• concat expressions: Expression(s) that define the string concatenation

Input/output types:

input	output
any	any

Examples

Creates a concat string expression

> let df = ([[a b c]; [one two 1] [three four 2]] | dfr into-df);
    $df | dfr with-column ((dfr concat-str "-" [(dfr col a) (dfr col b) ((dfr col c) * 2)]) | dfr as concat)
╭───┬───────┬──────┬───┬──────────────╮
│ # │   a   │  b   │ c │    concat    │
├───┼───────┼──────┼───┼──────────────┤
│ 0 │ one   │ two  │ 1 │ one-two-2    │
│ 1 │ three │ four │ 2 │ three-four-4 │
╰───┴───────┴──────┴───┴──────────────╯

Tips: Dataframe commands were not shipped in the official binaries by default, you have to build it with --features=dataframe flag