dfr concat-str
for expression
Creates a concat string expression.
Signature
> dfr concat-str (separator) (concat expressions)
Parameters
separator
: Separator used during the concatenationconcat 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
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