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主屏幕上的全屏APP,带有推送通知、徽章等。

在iOS和iPadOS上安装此APP
  1. 在Safari中轻敲分享图标
  2. 滚动菜单并轻敲添加到主屏幕
  3. 轻敲右上角的添加按钮。
在安卓上安装此APP
  1. 轻敲浏览器右上角的三个点菜单 (⋮) 。
  2. 轻敲添加到主屏幕安装APP
  3. 轻敲安装进行确认。
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HTML - What is a Web API?

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HTML - What is a Web API?


A Web API is a developer's dream.

  • It can extend the functionality of the browser
  • It can greatly simplify complex functions
  • It can provide easy syntax to complex code

What is Web API?

API stands for Application Programming Interface. An API is some kind of interface that includes a set of functions and subroutines that allow programmers to access specific features or data of an application, operating system or other services.

A Web API is an application programming interface for the Web.


HTML APIs

All browsers have a set of built-in Web APIs to support complex operations, and to help accessing data.

Here are some of the main HTML5 APIs:

1. Geolocation API - This API is used to access the current location of a user (with latitude and longitude).

2. Drag and Drop API - This API enables you to use drag-and-drop features in browsers.

3. Web Storage API - This API has mechanisms to let browsers store key/value pairs (in a more intuitive way than cookies).

4. Web Workers API - This API allows a JavaScript to run in the background, without affecting the performance of the page. Users can continue to do whatever they want: clicking, selecting things, etc., while the web worker runs in the background.

5. Server-Sent Events API - This API allows a web page to automatically get updates from a server.

6. Canvas API - This API lets you draw graphics, on the fly, via JavaScript.



Notes on Using HTML APIs

When implementing an HTML API, you should always:

Check Browser Capability - Always check that the target browsers support the API. Always add script or message to be run if a browser does not support it.

Add Robust Error Handling - Add robust error handling to take care of scenarios where an API may not function as expected, to ensure a seamless user experience.

Request User Permission - When using an API that accesses sensitive data, like the Geolocation API (which will access the user's geographical position), always prompt  the user for consent before proceeding.


Third Party APIs

Third party APIs are not built into your browser.

To use these APIs, you will have to download the code from the Web.

Examples:

  • YouTube API - Allows you to display videos on a web site.
  • Twitter API - Allows you to display Tweets on a web site.
  • Facebook API - Allows you to display Facebook info on a web site.

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配置浏览器推送通知

Chrome (安卓)
  1. 轻敲地址栏旁的锁形图标。
  2. 轻敲权限 → 通知。
  3. 调整你的偏好。
Chrome (台式电脑)
  1. 点击地址栏中的挂锁图标。
  2. 选择网站设置。
  3. 找到通知选项并调整你的偏好。