Using a variable to format printf not allowed?

[fatteneder]

@mmv

Do you know where I can find the documentation for Printf.Format and Printf.format? Most URL links on the Internet lead to the page Printf · The Julia Language which does not say anything about the formats, or how this differs from printf… Thanks again.

Like @Barget said, try the ? operator:

help?> Printf.Format
  Printf.Format(format_str)

  Create a C printf-compatible format object that can be used for formatting values.

  The input format_str can include any valid format specifier character and modifiers.

  A Format object can be passed to Printf.format(f::Format, args...) to produce a formatted
  string, or Printf.format(io::IO, f::Format, args...) to print the formatted string directly
  to io.

  For convenience, the Printf.format"..." string macro form can be used for building a
  Printf.Format object at macro-expansion-time.

  │ Julia 1.6
  │
  │  Printf.Format requires Julia 1.6 or later.