callback - How to do proper error handling in javascript?

Question

Closed. This question needs details or clarity. It is not currently accepting answers. question from:https://stackoverflow.com/questions/65869595/how-to-do-proper-error-handling-in-javascript

Answer 1

To handle the error in one, you use a try/catch in one:

function one() {
    console.log(`in one`);
    try {
        two();
    } catch (e) {
        console.log(`handling error "${e.message}...`);
        console.log("continuing work...");
    }
}

function two() {
    console.log(`in two`);
    three();
}

function three() {
    console.log(`in three`);
    // Error is caused here:
    null.example();
}

one();