method Domain.prototype.bind
Usage in Deno
import { Domain } from "node:domain";
Domain.prototype.bind<T extends Function>(callback: T): T
The returned function will be a wrapper around the supplied callback
function. When the returned function is called, any errors that are
thrown will be routed to the domain's 'error'
event.
const d = domain.create();
function readSomeFile(filename, cb) {
fs.readFile(filename, 'utf8', d.bind((er, data) => {
// If this throws, it will also be passed to the domain.
return cb(er, data ? JSON.parse(data) : null);
}));
}
d.on('error', (er) => {
// An error occurred somewhere. If we throw it now, it will crash the program
// with the normal line number and stack message.
});
callback: T
The callback function
The bound function