Trait JsValueExtension 

pub trait JsValueExtension {
    // Required methods
    fn try_as_u8(&self) -> Result<u8, Error>;
    fn try_as_u16(&self) -> Result<u16, Error>;
    fn try_as_u32(&self) -> Result<u32, Error>;
    fn try_as_u64(&self) -> Result<u64, Error>;
    fn try_as_vec_u8(&self) -> Result<Vec<u8>, Error>;
}

Extension trait converting a JsValue into native Rust integer and byte types.

Required Methods

fn try_as_u8(&self) -> Result<u8, Error>

Convert the value to a u8, erroring if it is not a number or is out of range.

fn try_as_u16(&self) -> Result<u16, Error>

Convert the value to a u16, erroring if it is not a number or is out of range.

fn try_as_u32(&self) -> Result<u32, Error>

Convert the value to a u32, erroring if it is not a number or is out of range.

fn try_as_u64(&self) -> Result<u64, Error>

Convert the value to a u64, accepting a hex string, a BigInt, or a number.

fn try_as_vec_u8(&self) -> Result<Vec<u8>, Error>

Convert the value to a Vec<u8>, accepting a hex string or a byte array.

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementations on Foreign Types

impl JsValueExtension for JsValue

fn try_as_u8(&self) -> Result<u8, Error>

fn try_as_u16(&self) -> Result<u16, Error>

fn try_as_u32(&self) -> Result<u32, Error>

fn try_as_u64(&self) -> Result<u64, Error>

fn try_as_vec_u8(&self) -> Result<Vec<u8>, Error>

Implementors