Skills required for web front-end development

Web front-end development requires the following 7 skills:

　　1. Page markup (HTML)

HTML page fixed, the label is not many, relatively speaking, it is easier to learn. Writing HTML code follows the HTML code specification (http://www.cnblogs.com/webDriver/p/7050911.html). HTML is a fundamental part of the page structure and is the foundation of a Web site, and the bloated, cluttered HTML code will not only affect its own performance, but its corresponding CSS and JavaScript code will also become difficult to write and maintain.

　　2. Page style css (cascading style Sheet)

In the standard page design, because the CSS is responsible for the Web page class capacity performance, so the CSS is also the front-end development needs to grasp one of the core content. CSS and HTML code, like the use of complex logic, the first page is easier, the main difficulty is how to make reasonable use of CSS combination and inheritance features to write concise, well-maintained CSS code.

　　3. Front-end programming refers to (JavaScript)

JavaScript is a kind of object-based and event-driven client-side scripting language, which is the technical basis of real-time dynamic interaction of pages. JavaScript is a very flexible scripting language, contains high-level functions, dynamic types and flexible object models, and other powerful language features, of course, the flexibility of JavaScript can also lead to difficult to maintain code. Browser compatibility also increases the difficulty of writing JavaScript code. Developers who are familiar with JavaScript basic syntax and basic coding specifications should also understand and address JavaScript compatibility issues in different browsing areas, and, as a front-end development engineer, must involve back-end programming, Some reason is that the current popular web programming method will have some back-end code exists in the front-end page, and the front-end html,javascript, such as mixed together, such as php,jsp,asp. NET and so on, therefore, the front-end development engineer also need to understand some back-end programming technology.

　　4. Cross-platform, cross-browser

Cross-platform refers to mobile devices (such as smartphones and tablets) and PC-side;

Cross-browser This problem with the IE6,IE7 market share decline and many browser standards, the current Popular Front-end framework has been very good to solve the browser compatibility problem. However, familiarity with common browser compatibility issues such as IE7,IE8 compatibility, compatibility of new features in HTML5, etc. is also required.

　　5. Front-End frame

The appearance of the front-end frame greatly reduces the difficulty of front-end development, the framework agrees with the encoding, encapsulates the browser compatibility problem and adds a lot of extended functionality. The open source framework, which is now top of the open source community GitHub, is dominated by front-end frameworks, such as jquery (JavaScript library), ANGULAR2, vue.js, react, and so on;

　　6. Debugging Tools

For front-end code, during debugging, you need to look at the HTML structure changes, CSS rendering effects, JavaScript code execution and HTTP requests and returned data, and understand the performance of each part of the site. Mainstream browsers have browser plugins to help with this work, ie Dev Toolbar in IE, developer Tools in Chrome, Firebug in Firefox, and more.

　　7. Communication skills

Web front-end development is between UI and back-end logic development, so web front-end development engineers need to communicate with the UI designer to determine whether the effect can be practical and practical, and to make recommendations for UI design, and to communicate with back-end engineers to determine the front-end interaction, To determine the interface of the backend interaction and the structure of the data entity being transferred, good communication makes the process much easier.

Skills required for web front-end development