通过KineticJS使用SVG路径资源实现世界地图的效果
本次演示提供了一个通过KineticJS空国家使用个SVG路径资源实现一个世界地图指示的小案例。当你的鼠标悬浮在某个国家的时候,演示会自动标示出来。
<script><br> var stage = new Kinetic.Stage({<br> container: 'container',<br> width: 578,<br> height: 260<br> });<br> var mapLayer = new Kinetic.Layer({<br> y: 20,<br> scale: 0.6<br> });<br><br> /*<br> * loop through country data stroed in the worldMap<br> * variable defined in the worldMap.js asset<br> */<br> for(var key in worldMap.shapes) {<br> var path = new Kinetic.Path({<br> data: worldMap.shapes[key],<br> fill: '#eee',<br> stroke: '#555',<br> strokeWidth: 1<br> });<br><br> path.on('mouseover', function() {<br> this.setFill('red');<br> mapLayer.drawScene();<br> });<br><br> path.on('mouseout', function() {<br> this.setFill('#eee');<br> mapLayer.drawScene();<br> });<br><br> mapLayer.add(path);<br> }<br><br> stage.add(mapLayer);<br><br> </script>

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Web standards and technologies have evolved from HTML4, CSS2 and simple JavaScript to date and have undergone significant developments. 1) HTML5 introduces APIs such as Canvas and WebStorage, which enhances the complexity and interactivity of web applications. 2) CSS3 adds animation and transition functions to make the page more effective. 3) JavaScript improves development efficiency and code readability through modern syntax of Node.js and ES6, such as arrow functions and classes. These changes have promoted the development of performance optimization and best practices of web applications.

Best practices for H5 code include: 1. Use correct DOCTYPE declarations and character encoding; 2. Use semantic tags; 3. Reduce HTTP requests; 4. Use asynchronous loading; 5. Optimize images. These practices can improve the efficiency, maintainability and user experience of web pages.

H5 is not just the abbreviation of HTML5, it represents a wider modern web development technology ecosystem: 1. H5 includes HTML5, CSS3, JavaScript and related APIs and technologies; 2. It provides a richer, interactive and smooth user experience, and can run seamlessly on multiple devices; 3. Using the H5 technology stack, you can create responsive web pages and complex interactive functions.

H5 and HTML5 refer to the same thing, namely HTML5. HTML5 is the fifth version of HTML, bringing new features such as semantic tags, multimedia support, canvas and graphics, offline storage and local storage, improving the expressiveness and interactivity of web pages.

HTML5 is a key technology for building modern web pages, providing many new elements and features. 1. HTML5 introduces semantic elements such as, , etc., which enhances web page structure and SEO. 2. Support multimedia elements and embed media without plug-ins. 3. Forms enhance new input types and verification properties, simplifying the verification process. 4. Offer offline and local storage functions to improve web page performance and user experience.

HTML5 code consists of tags, elements and attributes: 1. The tag defines the content type and is surrounded by angle brackets, such as. 2. Elements are composed of start tags, contents and end tags, such as contents. 3. Attributes define key-value pairs in the start tag, enhance functions, such as. These are the basic units for building web structure.

H5 improves web user experience with multimedia support, offline storage and performance optimization. 1) Multimedia support: H5 and elements simplify development and improve user experience. 2) Offline storage: WebStorage and IndexedDB allow offline use to improve the experience. 3) Performance optimization: WebWorkers and elements optimize performance to reduce bandwidth consumption.
