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std.env.opt

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fn pub opt(name: String) -> Option[String] {
  match inko_env_get(_INKO.state, name) {
    case { @tag = 0, @value = val } -> Option.Some(val as String)
    case _ -> Option.None
  }
}
fn pub static opt(name: String) -> Option[String]

Returns an optional value of an environment variable.

Examples

Obtaining the value of an environment variable:

import std.env

env.opt('HOME') # => Option.Some('/home/alice')