console_error_panic_hook

This crate lets you debug panics on wasm32-unknown-unknown by providing a panic hook that forwards panic messages to console.error.

When an error is reported with console.error, browser devtools and node.js will typically capture a stack trace and display it with the logged error message.

Usage

There are two ways to install this panic hook.

First, you can set the hook yourself by calling std::panic::set_hook in some initialization function:

```rust extern crate consoleerrorpanic_hook; use std::panic;

fn myinitfunction() { panic::sethook(Box::new(consoleerrorpanichook::hook));

// ...

} ```

Alternatively, use set_once on some common code path to ensure that set_hook is called, but only the one time. Under the hood, this uses std::sync::Once.

```rust extern crate consoleerrorpanic_hook;

struct MyBigThing;

impl MyBigThing { pub fn new() -> MyBigThing { consoleerrorpanichook::setonce();

    MyBigThing
}

} ```