Method: Polars::StringExpr#reverse

Defined in:

lib/polars/string_expr.rb

#reverse ⇒ Expr

Returns string values in reversed order.

Examples:

df = Polars::DataFrame.new({"text" => ["foo", "bar", "man\u0303ana"]})
df.with_columns(Polars.col("text").str.reverse.alias("reversed"))
# =>
# shape: (3, 2)
# ┌────────┬──────────┐
# │ text   ┆ reversed │
# │ ---    ┆ ---      │
# │ str    ┆ str      │
# ╞════════╪══════════╡
# │ foo    ┆ oof      │
# │ bar    ┆ rab      │
# │ mañana ┆ anañam   │
# └────────┴──────────┘

Returns:

# File 'lib/polars/string_expr.rb', line 1429

def reverse
  Utils.wrap_expr(_rbexpr.str_reverse)
end