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fmt

The fmt library contains helper functions for formatting strings.

//fmt.pretty(v <: value) <: string​

Returns a pretty (i.e. with newlines and indents) string representation of the given value.

Usage:

$ arrai eval "//fmt.pretty({'a': (b: [1,2])})"
{
  'a': (
    b: [1, 2],
  ),
}
info

The rendering of output strings differs between arrai eval and the interactive shell. As such, the result of //fmt.pretty in the interactive shell will not appear very pretty:

@> //fmt.pretty({'a': (b: [1,2])})
"{\n  'a': (\n    b: [1, 2],\n  ),\n}"