Method: Polars::StringExpr#encode

Defined in:
lib/polars/string_expr.rb

#encode(encoding) ⇒ Expr

Encode a value using the provided encoding.

Examples:

df = Polars::DataFrame.new({"strings" => ["foo", "bar", nil]})
df.select(Polars.col("strings").str.encode("hex"))
# =>
# shape: (3, 1)
# ┌─────────┐
# │ strings │
# │ ---     │
# │ str     │
# ╞═════════╡
# │ 666f6f  │
# │ 626172  │
# │ null    │
# └─────────┘

Parameters:

  • encoding ("hex", "base64") —

    The encoding to use.

Returns:



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# File 'lib/polars/string_expr.rb', line 1063

def encode(encoding)
  if encoding == "hex"
    Utils.wrap_expr(_rbexpr.str_hex_encode)
  elsif encoding == "base64"
    Utils.wrap_expr(_rbexpr.str_base64_encode)
  else
    raise ArgumentError, "encoding must be one of {{'hex', 'base64'}}, got #{encoding}"
  end
end