Float to string with fixed precision

[svenroy]

In Javascript, I am able to do:

const value = 0.8999999999
const roundedValueAsString = value.toFixed(2)

console.log(roundedValueAsString) // "0.90"
console.log(typeof roundedValueAsString) // "string"

There is similar behaviour in Elixir

[Louis Pilfold]

Hello! Good idea, thank you. It would go in the float module and we'd need to determine a name.

[David Justice]

@lpil I am currently working on this. How do we feel about to_fixed_string or to_string_fixed for the function name?

[Mark Holmes]

Since round, truncate, and to_string already exist, I think to_fixed_string sounds like a good name. Anyone else have ideas?