Due to the rapid development of web technology, the front-end of websites is also constantly changing, and various web pages are becoming more diverse, resulting in increased difficulty in web page production. It has gradually evolved into an independent technology for web front-end development. How to provide users with a good experience on a company’s website involves how website developers layout the pages of the company’s website.
One Three techniques for front-end development
Accessing a page through a browser and displaying corresponding web server feedback information on the browser requires three main front-end development technologies, and these three main technologies are HTML; CSs； Javascript will briefly describe these three technologies below.
（1） HTML
HTML is just one application of the Standard Generalized Markup Language, and it has normativity to the Standard Generalized Language. The display of text structure and content on browser web pages is the markup text provided by HTML, which is the foundation of web programming. The browser displays web pages in a certain order of tags and according to pre-set rules. So the first step in website construction is to use HIML to build a well-designed framework that is compatible with current browsers. Of course, using only HTML technology for web page construction and development is not enough. In this case, web pages do not have the usability of enterprise websites, and CS language needs to be used to further optimize the usability of web pages.
（2） CSS
CSS, like HTML, is a style language, HIML is a web standard style language, and CSs is a web descriptive style language. CSS can split the data and style information of web pages to achieve the most enhanced presentation of web page information by browsers. It can provide various document styles and appearances for modifying elements and text, changing the color of page fonts, and enhancing important content tags in HTML. Although the use of CSS and HTML can meet users’ browsing needs for enterprise web pages, there are still two issues that need to be addressed. The web pages that need to be crafted with these techniques should meet usability requirements in terms of appearance and functionality. First, CSS displays very differently in different browsers or different versions of the same browser in the Internet market today. Because the core design of browsers and their support for web pages are different, sometimes some browsers cannot display the essential content of web pages. Therefore, when writing CSS, you need to consider the compatibility of various browsers. Secondly, at this point, the webpage is still static and has browsing capabilities but cannot interact with data, requiring the use of JavaScript technology.
（3） Javascript
Javascript i, abbreviated as J, is a language that has developed into a comprehensive and sophisticated direct translation scripting language with the advancement of modern network technology. The Javascript interpreter has become a must-have for various browsers and is known as the Javascript engine, mainly used on the user side. The reason why Javascript has developed very well at that time is because it is widely used in the development and construction of web pages. It can handle various complex computational problems, interact with browsers and web servers, and can also be dynamic. Its role on the server side has gradually emerged with the development of technology. The interaction between Javascript and HIML can achieve a loose coupling effect between page behavior and style. When the browser has a certain interaction action, it binds a specific element handler through the use of listeners, and at this time, there will be corresponding handler functions triggered to execute the task.
2、 Web development based on MVC pattern with front-end and back-end separation
（1） Divide the front-end and back-end
The view layer (V) is the construction of the page, displaying various data and dividing it into front-end components; The model layer (M) stores various numbers and processes different business logic, divided into processing. The control layer (C) has the function of forwarding and processing requests, and it is a backend. The most crucial aspect is the division of the control layer, as it relates to the front-end and back-end coupling to a certain server of the problem. After the server receives the content and processes it in the model layer, it feeds back the content to the control information deployment processor, parses the client’s request content, and sends it to the control layer, which then sends the correct web page to the client. Although the communication between the control layer and the model layer is relatively simple, it is used for data exchange. From the perspective of the role of the control layer, it is the place for data interaction and scheduling, without business logic, so it is more reasonable to divide the control layer into the front-end.
（2） Realize front and back separation
Most portal websites use Node Using JavaScript as an intermediate layer, develop enterprise websites using Express. When users visit the portal of the enterprise website, the server makes a judgment and responds. If the page requires dynamic data, Node will send the user ID as a request parameter to the backend interface, and the backend will process the request and return it to the Node layer in the form of ISON. After the data reaches the Node layer, use a function callback to dye the corresponding page. These obtained data will be injected into the ES template, converting the JSON data into HTML, and finally displaying the file in the browser. At this point, the user can see it.
（3） Separate data before and after reuse
The application of the front-end and back-end separation mode has an advantage in that the data usability of the backend is very strong. For example, it is very convenient to query weather forecasts today, but the query function of weather forecasts calls an external interface. Users send requests for weather conditions of a certain city, and the front-end obtains the request parameters. AJAX technology is used to send the request to the Node layer, which sends a second request to the weather forecast interface to the Node side, and then returns to the front-end page. The user refreshes it to get the processed weather forecast for a certain city. Formally utilizing this front back separation mode, the backend of the weather forecast only focuses on updating weather data, without needing to pay attention to the structure of the page. The frontend only needs to focus on presenting the interface to the user, without updating data. Moreover, this platform can use weather forecast data anywhere connected to the network, which indicates that front back separation data can be reused.
In the construction and development of enterprise websites, the front-end and back-end separation mode is adopted for web development, which greatly simplifies the complexity of website construction, weakens the coupling between the front-end and back-end, and enhances the reusability of some data. Front end technology can be used in the construction and development of enterprise websites quickly and effectively, making maintenance and website expansion easier in the later stages. This improves the work efficiency of employees and increases the overall efficiency of the enterprise.
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