Attributes
- Companion
- class
- Source
- Option.scala
- Graph
-
- Supertypes
- Self type
-
Option.type
Members list
Value members
Concrete methods
An Option factory which creates Some(x) if the argument is not null, and None if it is null.
An Option factory which creates Some(x) if the argument is not null, and None if it is null.
Type parameters
- A
-
the type of the value
Value parameters
- x
-
the value
Attributes
- Returns
-
Some(value) if value != null, None if value == null
- Source
- Option.scala
An Option factory which returns None in a manner consistent with the collections hierarchy.
An Option factory which returns None in a manner consistent with the collections hierarchy.
Type parameters
- A
-
the type of the option's value
Attributes
- Source
- Option.scala
Unless a given condition is true, this will evaluate the a argument and return Some(a). Otherwise, a is not evaluated and None is returned.
Unless a given condition is true, this will evaluate the a argument and return Some(a). Otherwise, a is not evaluated and None is returned.
Type parameters
- A
-
the type of the value
Value parameters
- a
-
the value to wrap in
Somewhencondis false (evaluated lazily) - cond
-
the condition to evaluate
Attributes
- Source
- Option.scala
When a given condition is true, evaluates the a argument and returns Some(a). When the condition is false, a is not evaluated and None is returned.
When a given condition is true, evaluates the a argument and returns Some(a). When the condition is false, a is not evaluated and None is returned.
Type parameters
- A
-
the type of the value
Value parameters
- a
-
the value to wrap in
Somewhencondis true (evaluated lazily) - cond
-
the condition to evaluate
Attributes
- Source
- Option.scala
Implicits
Implicits
An implicit conversion that converts an option to an iterable value.
An implicit conversion that converts an option to an iterable value.
Type parameters
- A
-
the element type of the option
Value parameters
- xo
-
the option to convert to an iterable
Attributes
- Source
- Option.scala