--- id: 5cdafbe72913098997531682 title: Handle a Rejected Promise with catch challengeType: 1 forumTopicId: 301204 --- ## Description
catch is the method used when your promise has been rejected. It is executed immediately after a promise's reject method is called. Here’s the syntax: ```js myPromise.catch(error => { // do something with the error. }); ``` error is the argument passed in to the reject method.
## Instructions
Add the catch method to your promise. Use error as the parameter of its callback function and log error to the console.
## Tests
```yml tests: - text: You should call the catch method on the promise. testString: assert(__helpers.removeWhiteSpace(code).match(/(makeServerRequest|\))\.catch\(/g)); - text: Your catch method should have a callback function with error as its parameter. testString: assert(errorIsParameter); - text: You should log error to the console. testString: assert(errorIsParameter && __helpers.removeWhiteSpace(code).match(/\.catch\(.*?error.*?console.log\(error\).*?\)/)); ```
## Challenge Seed
```js const makeServerRequest = new Promise((resolve, reject) => { // responseFromServer is set to false to represent an unsuccessful response from a server let responseFromServer = false; if(responseFromServer) { resolve("We got the data"); } else { reject("Data not received"); } }); makeServerRequest.then(result => { console.log(result); }); ```
### After Test
```js const errorIsParameter = /\.catch\((function\(error\){|error|\(error\)=>)/.test(__helpers.removeWhiteSpace(code)); ```
## Solution
```js const makeServerRequest = new Promise((resolve, reject) => { // responseFromServer is set to false to represent an unsuccessful response from a server let responseFromServer = false; if(responseFromServer) { resolve("We got the data"); } else { reject("Data not received"); } }); makeServerRequest.then(result => { console.log(result); }); makeServerRequest.catch(error => { console.log(error); }); ```