Published: May 2, 2022 by nemanjan00
Did you forget to print error on rejection, in a huge project and are now having issues debugging it? I wrote a snippet of code to solve that.
const promiseProto = new global.Promise(() => {}).__proto__;
const originalCatch = promiseProto.catch; // grab original catch implementation
promiseProto.catch = function(...args) { // wrap around catch implementation, to print error
const originalCallback = args[0];
args[0] = (...errArgs) => {
console.error(errArgs[0]);
originalCallback(...errArgs);
};
return originalCatch.apply(this, args);
};
Promise.reject(new Error("Just a terrible error")).catch(() => {
// forgoten rejection
});
