Trait MapJsError 

pub trait MapJsError<T> {
    // Required method
    fn map_err_to_js(self) -> Result<T, JsValue>;
}

An extension trait on Result that helps easy conversion of Rust errors to JavaScript error strings usable by wasm_bindgen

Required Methods

fn map_err_to_js(self) -> Result<T, JsValue>

An extension method on Result to easily convert Rust errors to JavaScript ones.

#[wasm_bindgen]
pub fn method(&self) -> Result<JsSomething, JsValue> {
    let result: JsSomething = self.fallible().map_err_to_js()?;
    Ok(result)
}

Dyn Compatibility

This trait is dyn compatible.

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

Implementations on Foreign Types

impl<T, E> MapJsError<T> for Result<T, E>

where E: ToString,

fn map_err_to_js(self) -> Result<T, JsValue>

Implementors