Skip to content

minor #1292

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
merged 1 commit into from
Aug 30, 2019
Merged

minor #1292

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
4 changes: 2 additions & 2 deletions 1-js/05-data-types/08-weakmap-weakset/article.md
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -155,7 +155,7 @@ We can avoid it by switching to `WeakMap` instead:

```js
// 📁 visitsCount.js
let visitsCountMap = new WeakMap(); // map: user => visits count
let visitsCountMap = new WeakMap(); // weakmap: user => visits count

// increase the visits count
function countUser(user) {
Expand All @@ -164,7 +164,7 @@ function countUser(user) {
}
```

Now we don't have to clean `visitsCountMap`. After `john` object becomes unreachable by all means except as a key of `WeakMap`, it gets removed from memory, along with the information by that key from `WeakMap`.
Now we don't have to clean `visitsCountMap`. After `john` object becomes unreachable by all means except as a key of `WeakMap`, it gets removed from memory, along with the information by that key from `WeakMap`.

## Use case: caching

Expand Down