CODEWITHSUNDEEP
javascript
Alexey_js
Alexey_js

Reputation: 77

Problems with Promises

I am sort of novice to JS and experimenting how the things work. How can I output error in the following case:

var k =Promise.resolve(function(){
    return new Promise((resolve,reject)=>reject("Error"))
});
k.then(...)

Upvotes: 1

Views: 37

Answers (1)

Shubham Dixit
Shubham Dixit

Reputation: 1

You can add a catch() block after then.

The catch() method returns a Promise and deals with rejected cases only. It behaves the same as calling Promise.prototype.then(undefined, onRejected). See here for more 

var k =Promise.resolve(function(){
            return new Promise((resolve,reject)=>reject("Error"))
        });

Like this

k.then(...).catch((error)=>{
        console.log(error)

        })

Upvotes: 1

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