Struct JsUndefined

pub struct JsUndefined(/* private fields */);

👎Deprecated since 3.0.0: use () instead

Implementations

impl JsUndefined

pub fn into_unknown<'env>(self) -> Unknown<'env>

pub fn coerce_to_bool(self) -> Result<JsBoolean>

pub fn coerce_to_number<'env>(self) -> Result<JsNumber<'env>>

pub fn coerce_to_string<'env>(self) -> Result<JsString<'env>>

pub fn coerce_to_object(self) -> Result<JsObject>

pub fn is_date(&self) -> Result<bool>

pub fn is_promise(&self) -> Result<bool>

pub fn is_error(&self) -> Result<bool>

pub fn is_typedarray(&self) -> Result<bool>

pub fn is_dataview(&self) -> Result<bool>

pub fn is_array(&self) -> Result<bool>

pub fn is_buffer(&self) -> Result<bool>

pub fn is_arraybuffer(&self) -> Result<bool>

pub fn instanceof<Constructor>(&self, constructor: Constructor) -> Result<bool>

where Constructor: NapiRaw,

Trait Implementations

impl Clone for JsUndefined

fn clone(&self) -> JsUndefined

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl FromNapiValue for JsUndefined

unsafe fn from_napi_value(env: napi_env, napi_val: napi_value) -> Result<Self>

Safety

fn from_unknown(value: Unknown<'_>) -> Result<Self>

impl JsValue<'_> for JsUndefined

fn value(&self) -> Value

fn raw(&self) -> napi_value

fn to_unknown(&self) -> Unknown<'env>

Convert the value to an unknown

fn coerce_to_bool(&self) -> Result<bool>

Coerce the value to a boolean

fn coerce_to_number(&self) -> Result<JsNumber<'_>>

fn coerce_to_string(&self) -> Result<JsString<'_>>

fn coerce_to_object(&self) -> Result<Object<'env>>

fn is_date(&self) -> Result<bool>

fn is_promise(&self) -> Result<bool>

fn is_error(&self) -> Result<bool>

fn is_typedarray(&self) -> Result<bool>

fn is_dataview(&self) -> Result<bool>

fn is_array(&self) -> Result<bool>

fn is_buffer(&self) -> Result<bool>

fn is_arraybuffer(&self) -> Result<bool>

fn instanceof<'c, Constructor>(&self, constructor: Constructor) -> Result<bool>

where Constructor: JsValue<'c>,

fn escape<'scope, E: JsValue<'scope> + FromNapiValue>( &self, escapable_handle_scope: EscapableHandleScope<'scope>, ) -> Result<E>

impl<'env> NapiRaw for &'env JsUndefined

unsafe fn raw(&self) -> napi_value

impl NapiRaw for JsUndefined

unsafe fn raw(&self) -> napi_value

impl NapiValue for JsUndefined

unsafe fn from_raw(env: napi_env, value: napi_value) -> Result<JsUndefined>

unsafe fn from_raw_unchecked(env: napi_env, value: napi_value) -> JsUndefined

impl TryFrom<Unknown<'_>> for JsUndefined

type Error = Error

The type returned in the event of a conversion error.

fn try_from(value: Unknown<'_>) -> Result<JsUndefined>

Performs the conversion.

impl TypeName for JsUndefined

fn type_name() -> &'static str

fn value_type() -> ValueType

impl ValidateNapiValue for JsUndefined

unsafe fn validate(env: napi_env, napi_val: napi_value) -> Result<napi_value>

Safety

impl Copy for JsUndefined