Files
Nicholas Carrigan (he/him) 7117919d36 chore(learn): audit javascript algorithms and data structures (#41092)
* chore(learn): audit basic algorithm scripting

* chore(learn): audit basic data structures

* chore(learn): audit basic javascript

* chore(learn): audit debugging

* chore(learn): audit es6

* chore(learn): audit functional programming

* chore(learn): audit intermidate algorithms

* chore(learn): audit js projects

* chore(learn): audit object oriented programming

* chore(learn): audit regex

* fix(learn): remove stray .

* fix(learn): string to code

* fix(learn): missed some

* fix(learn): clarify strings

Based on Randy's feedback, clarifies string instances where quotes
were removed in favour of back ticks.

* fix: apply suggestions - thanks Randy! :)

Co-authored-by: Randell Dawson <5313213+RandellDawson@users.noreply.github.com>

* fix: non-suggestion comments

* chore(learn): remove comments from codes

Removes the comments from the description and instruction code
blocks to ensure that all relevant information is translatable.

* fix: Apply suggestions from code review

Co-authored-by: Shaun Hamilton <51722130+ShaunSHamilton@users.noreply.github.com>

* fix: revert crowdin fix

* Update curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-algorithm-scripting/mutations.md

Co-authored-by: Randell Dawson <5313213+RandellDawson@users.noreply.github.com>

* fix: Apply suggestions from code review

Co-authored-by: Shaun Hamilton <51722130+ShaunSHamilton@users.noreply.github.com>

* Update curriculum/challenges/english/02-javascript-algorithms-and-data-structures/es6/use-destructuring-assignment-to-assign-variables-from-arrays.md

Co-authored-by: Shaun Hamilton <51722130+ShaunSHamilton@users.noreply.github.com>

* fix: Apply suggestions from code review

Co-authored-by: Oliver Eyton-Williams <ojeytonwilliams@gmail.com>
Co-authored-by: Shaun Hamilton <51722130+ShaunSHamilton@users.noreply.github.com>

* chore: change voice

* fix: Christopher Nolan

* fix: expressions would evaluate

* fix: will -> would

* Update curriculum/challenges/english/02-javascript-algorithms-and-data-structures/object-oriented-programming/add-methods-after-inheritance.md

Co-authored-by: Randell Dawson <5313213+RandellDawson@users.noreply.github.com>

* fix: to work to push

* Update curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/iterate-with-javascript-for-loops.md

Co-authored-by: Shaun Hamilton <51722130+ShaunSHamilton@users.noreply.github.com>

* Update curriculum/challenges/english/02-javascript-algorithms-and-data-structures/object-oriented-programming/add-methods-after-inheritance.md

Co-authored-by: Randell Dawson <5313213+RandellDawson@users.noreply.github.com>

Co-authored-by: Randell Dawson <5313213+RandellDawson@users.noreply.github.com>
Co-authored-by: Shaun Hamilton <51722130+ShaunSHamilton@users.noreply.github.com>
Co-authored-by: Oliver Eyton-Williams <ojeytonwilliams@gmail.com>
2021-03-02 17:12:12 -07:00

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---
id: 5cdafbd72913098997531681
title: Handle a Fulfilled Promise with then
challengeType: 1
forumTopicId: 301203
dashedName: handle-a-fulfilled-promise-with-then
---
# --description--
Promises are most useful when you have a process that takes an unknown amount of time in your code (i.e. something asynchronous), often a server request. When you make a server request it takes some amount of time, and after it completes you usually want to do something with the response from the server. This can be achieved by using the `then` method. The `then` method is executed immediately after your promise is fulfilled with `resolve`. Heres an example:
```js
myPromise.then(result => {
});
```
`result` comes from the argument given to the `resolve` method.
# --instructions--
Add the `then` method to your promise. Use `result` as the parameter of its callback function and log `result` to the console.
# --hints--
You should call the `then` method on the promise.
```js
assert(
__helpers.removeWhiteSpace(code).match(/(makeServerRequest|\))\.then\(/g)
);
```
Your `then` method should have a callback function with `result` as its parameter.
```js
assert(resultIsParameter);
```
You should log `result` to the console.
```js
assert(
resultIsParameter &&
__helpers
.removeWhiteSpace(code)
.match(/\.then\(.*?result.*?console.log\(result\).*?\)/)
);
```
# --seed--
## --after-user-code--
```js
const resultIsParameter = /\.then\((function\(result\){|result|\(result\)=>)/.test(__helpers.removeWhiteSpace(code));
```
## --seed-contents--
```js
const makeServerRequest = new Promise((resolve, reject) => {
// responseFromServer is set to true to represent a successful response from a server
let responseFromServer = true;
if(responseFromServer) {
resolve("We got the data");
} else {
reject("Data not received");
}
});
```
# --solutions--
```js
const makeServerRequest = new Promise((resolve, reject) => {
// responseFromServer is set to true to represent a successful response from a server
let responseFromServer = true;
if(responseFromServer) {
resolve("We got the data");
} else {
reject("Data not received");
}
});
makeServerRequest.then(result => {
console.log(result);
});
```