Method: Polars::StringExpr#replace_all

Defined in:
lib/polars/string_expr.rb

#replace_all(pattern, value, literal: false) ⇒ Expr

Replace all matching regex/literal substrings with a new string value.

Examples:

df = Polars::DataFrame.new({"id" => [1, 2], "text" => ["abcabc", "123a123"]})
df.with_columns(Polars.col("text").str.replace_all("a", "-"))
# =>
# shape: (2, 2)
# ┌─────┬─────────┐
# │ id  ┆ text    │
# │ --- ┆ ---     │
# │ i64 ┆ str     │
# ╞═════╪═════════╡
# │ 1   ┆ -bc-bc  │
# │ 2   ┆ 123-123 │
# └─────┴─────────┘

Parameters:

  • pattern (String) —

    Regex pattern.

  • value (String) —

    Replacement string.

  • literal (Boolean) (defaults to: false) —

    Treat pattern as a literal string.

Returns:



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# File 'lib/polars/string_expr.rb', line 1405

def replace_all(pattern, value, literal: false)
  pattern = Utils.parse_into_expression(pattern, str_as_lit: true)
  value = Utils.parse_into_expression(value, str_as_lit: true)
  Utils.wrap_expr(_rbexpr.str_replace_all(pattern, value, literal))
end