Ondrag event triggered when an element or selected text is dragged in HTML5

The ondrag event is triggered when an element or selected text is dragged. Drag and drop is a very common feature in HTML5. For more information, check out HTML5 Drag and Drop in our HTML tutorial. Note: To make an element draggable, you need to use the HTML5 draggable attribute. Tip: Links and images are draggable by default and do not require the draggable attribute.

Ondragstart event in HTML5 that is triggered when the user starts dragging an element or selected text

The ondragstart event fires when the user starts dragging an element or selected text. Drag and drop is a very common feature in HTML5. For more information, check out HTML5 Drag and Drop in our HTML tutorial. Note: To make an element draggable, you need to use the HTML5 draggable attribute.

HTML5 attribute spellcheck specifies whether to perform spelling and grammar checks on elements

hidden boolean attribute in html5

The hidden attribute can also be used to prevent the user from viewing an element until certain conditions are met (such as a checkbox being selected). JavaScript can then remove the hidden attribute to make this element visible.

HTML5 specifies whether to copy, move or link the attribute dropzone when dragging the dragged data.

The dropzone attribute specifies whether the dragged data is copied, moved, or linked when dragging data on an element.

HTML5 attribute draggable specifies whether an element is draggable

The draggable attribute specifies whether the element is draggable. Tip: Links and images are draggable by default. Tip: The draggable attribute is commonly used in drag-and-drop operations. Learn more in our drag and drop tutorial.

html5 data-* attributes that store private custom data for a page or application

The stored (custom) data can be leveraged within the page's JavaScript to create a better user experience (without making Ajax calls or server-side database queries).

HTML5 specifies the context menu attribute of the element contextmenu

The contextmenu attribute specifies the element's context menu. When the user right-clicks on an element, a context menu appears. The value of the contextmenu attribute is the id of the

Example analysis of semantic tags, new features in HTML5

HTML5 has only one simple document type: , which means the browser will parse it according to the standard mode. Today, the editor brings you the new feature of HTML5, semantic tags. Friends who are interested should take a look.

HTML5 uses go+websocket to build a websocket service example

This time, I will just post the code screenshots. It should be a simple chat in the background using Go language. No special knowledge is used here. It is the simplest way to achieve the effect. The main purpose is to share how to build h5 using websocket and go. The main part of the websocket service.

Example of how to draw hearts on html5 canvas

This article introduces in detail the example of how to draw hearts on HTML5 canvas, which has certain reference value. Let’s take a look together!

Html5 Doudizhu chess and card set up Canvas to realize Doudizhu game code analysis

Now after reading h5.zhengtuwl.comhtml5 and canvas-related knowledge and the demo of Doudizhu, I tried to write a Doudizhu using the materials on the demo. The code was not refactored well. I welcome your advice. Without further ado, let me explain step by step.

Detailed explanation of the solution to the scaling problem of HTML5 mobile page

This article mainly introduces the relevant information to solve the problem of HTML5 mobile page scaling. Friends in need can refer to it.

Example of LocalStorage local storage in html5

Before the birth of HTML5, if a website wanted to store data on the browser side, it could only use cookies. There were many restrictions on the use of cookies.