Must Know JavaScript API
Less than 1 minute
Must Know JavaScript API ๊ด๋ จ
Welcome to the Must Know JavaScript API series, this series will learn the JavaScript API with you, so that you can be more proficient in using it like a senior engineer. Letโs start learning together:
![](https://miro.medium.com/v2/resize:fill:59:59/1*H8epNyccEIEHWl9YYJhO2w.png)
Must Know JavaScript API > Page Visibility API
Page Visibility API
![](https://miro.medium.com/v2/resize:fill:59:59/1*H8epNyccEIEHWl9YYJhO2w.png)
Must Know JavaScript API > Broadcast Channel API
Broadcast Channel API
![](https://miro.medium.com/v2/resize:fill:59:59/1*H8epNyccEIEHWl9YYJhO2w.png)
Must Know JavaScript API > Resize Observer API
Resize Observer API
![](https://miro.medium.com/v2/resize:fill:59:59/1*H8epNyccEIEHWl9YYJhO2w.png)
Must Know JavaScript API > Beacon API
Beacon API
![](https://miro.medium.com/v2/resize:fill:59:59/1*H8epNyccEIEHWl9YYJhO2w.png)
Must Know JavaScript API > Clipboard API
Clipboard API
![](https://miro.medium.com/v2/resize:fill:59:59/1*H8epNyccEIEHWl9YYJhO2w.png)
Must Know JavaScript API > Fetch API
Fetch API