u1.fromEnvironment constructor
Returns the integer value of the given environment declaration name
.
The result is the same as would be returned by:
u1(int.tryParse(const String.fromEnvironment(name, defaultValue: ""))
?? defaultValue)
Example:
u1.fromEnvironment("defaultPort", defaultValue: 80)
1-bit Unsigned Integer
0
and 1
Implementation
factory u1.fromEnvironment(String name, {int defaultValue = 0}) {
return u1(
int.fromEnvironment(
name,
defaultValue: defaultValue.toUnsigned(1),
),
);
}