Struct null

pub struct null { /* private fields */ }

value of Null type

Methods from Deref<Target = Any>

pub fn type_id(&self) -> TypeId

Returns the TypeId of the stored value.

pub fn is_integer(&self) -> bool

Returns true if the type is an integer.

pub fn is_float(&self) -> bool

Returns true if the type is a float.

pub fn is_number(&self) -> bool

Returns true if the type is a number.

pub fn is_nan(&self) -> bool

Returns true if the type is NaN.

pub fn is_string(&self) -> bool

Returns true if the type is a string.

pub fn is_array(&self) -> bool

Returns true if the type is an array.

pub fn is_map(&self) -> bool

Returns true if the type is a map.

pub fn is_null(&self) -> bool

Returns true if the type is null.

pub fn is_boolean(&self) -> bool

Returns true if the type is a boolean.

pub fn is_function(&self) -> bool

Returns true if the type is a function.

pub fn is_pair(&self) -> bool

Returns true if the type is a pair.

pub fn to_integer(&self) -> i64

Converts the type to an integer.

pub fn to_float(&self) -> f64

Converts the type to a float.

pub fn to_str(&self) -> String

Converts the type to a string.

pub fn to_array(&self) -> Array

Converts the type to an array.

pub fn to_map(&self) -> Map

Converts the type to a map.

pub fn to_boolean(&self) -> bool

Converts the type to a boolean.

pub fn to_pair(&self) -> Pair

Converts the type to a pair.

pub fn to_function(&self) -> Function

Converts the type to a function.

pub fn get(&self, key: impl Into<Any>) -> Any

Gets a value from the map.

pub fn length(&self) -> Any

Returns the length of the collection.

pub fn is_empty(&self) -> Any

Returns true if the collection is empty.

pub fn call(&self, args: Any) -> Any

Calls the function with the specified arguments.

The first argument must be an Array object value.

Trait Implementations

impl Deref for null

type Target = Any

The resulting type after dereferencing.

fn deref(&self) -> &Any

Dereferences the value.

impl LazyStatic for null