Expand description
Increments and returns the new value stored by the given environment variable key. In case the variable does not exist, it will increment to 1. The updated value will be returned.
Arguments
key
- The environment variable name
Example
fn main() {
envmnt::set_u8("ENV_VAR", 5);
let value = envmnt::increment("ENV_VAR");
assert_eq!(value, 6);
}