Enum Nullish 

pub enum Nullish {
    Null,
    Undefined,
}

https://developer.mozilla.org/en-US/docs/Glossary/Nullish “In JavaScript, a nullish value is the value which is either null or undefined. Nullish values are always falsy.”

Variants

Null

Undefined

Trait Implementations

impl Clone for Nullish

fn clone(&self) -> Nullish

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for Nullish

impl Debug for Nullish

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<A: IVm> From<Nullish> for Unpacked<A>

fn from(value: Nullish) -> Self

Converts to this type from the input type.

impl PartialEq for Nullish

fn eq(&self, other: &Nullish) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for Nullish

impl<A: IVm> TryFrom<Any<A>> for Nullish

type Error = Any<A>

The type returned in the event of a conversion error.

fn try_from(value: Any<A>) -> Result<Self, Self::Error>

Performs the conversion.