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content(docs): clean up unused parameter in code examples

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This commit is contained in:
Dhanush Adithya
2020-07-24 11:24:12 -04:00
committed by Jean-Philippe Sirois
parent e4df60d22b
commit 1749ec3648
1 changed files with 5 additions and 5 deletions
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src/content/resources/language/javascript/promises/simplifying-promises.md
+5 -5
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@@ -8,7 +8,7 @@ title: Simplifying Promises
The first naive attempt, using new Promise for something that already returns a promise. The first naive attempt, using new Promise for something that already returns a promise.
```js ```js
function doAsync(number) { function doAsync() {
return new Promise(function (resolve, reject) { return new Promise(function (resolve, reject) {
doDatabase().then(function (dbResult) { doDatabase().then(function (dbResult) {
otherDbFunction(dbResult).then(function (secondResult) { otherDbFunction(dbResult).then(function (secondResult) {
@@ -23,7 +23,7 @@ Turns out you don't need new Promise if you're working with a function that
already returns a promise, you can just return the original thing. already returns a promise, you can just return the original thing.
```js ```js
function doAsync(number) { function doAsync() {
return doDatabase().then(function (dbResult) { return doDatabase().then(function (dbResult) {
otherDbFunction(dbResult).then(function (secondResult) { otherDbFunction(dbResult).then(function (secondResult) {
return secondResult + 10; return secondResult + 10;
@@ -36,7 +36,7 @@ You also don't have to nest `.then` functions, the whole point of promises
is that they allow you to chain them sequentially. is that they allow you to chain them sequentially.
```js ```js
function doAsync(number) { function doAsync() {
return doDatabase() return doDatabase()
.then(function (dbResult) { .then(function (dbResult) {
return otherDbFunction(dbResult); return otherDbFunction(dbResult);
@@ -51,7 +51,7 @@ you also don't have to create a new function just to pass in one
variable, you can pass in the entire function itself to the then block variable, you can pass in the entire function itself to the then block
```js ```js
function doAsync(number) { function doAsync() {
return doDatabase() return doDatabase()
.then(otherDbFunction) .then(otherDbFunction)
.then(function (secondResult) { .then(function (secondResult) {
@@ -63,7 +63,7 @@ function doAsync(number) {
And you don't need those returns if you just have ES6 arrow functions And you don't need those returns if you just have ES6 arrow functions
```js ```js
const doAsync = (number) => const doAsync = () =>
doDatabase() doDatabase()
.then(otherDbFunction) .then(otherDbFunction)
.then((secondResult) => secondResult + 10); .then((secondResult) => secondResult + 10);