Front-end development is the process of creating a Web page or APP and other front-end interface to present to the user, through HTML, CSS and JavaScript, as well as the derivation of a variety of technologies, frameworks, and solutions to realize the user interface interaction of Internet products. Back-end development refers to running in the background and control the content of the front-end, which is responsible for program design and architecture as well as database management and processing related business logic. It is mainly concerned with the realization of functionality and the manipulation of data.

Compared to front-end development, back-end developers are more demanding in terms of business logic, so if you don't have the relevant foundation before, choosing front-end development is relatively less difficult to learn.

The main duties of front-end engineers are divided into three major parts, respectively, the traditional web front-end development, mobile development and big data presentation end development. web front-end development is mainly for the PC development tasks; mobile development, including Android development, iOS development and a variety of small program development, in the rapid development of the mobile Internet, driven by the development of mobile development tasks are relatively large. The amount of tasks is relatively large.

The main responsibilities of back-end engineers are platform design, interface design and function realization. Platform design is mainly to build the back-end support service container; interface design is mainly for different industries to carry out the corresponding functional interface design, usually a platform has more than one set of interfaces, just like the satellite navigation platform has two sets of interfaces for civil and military use; functional realization is to complete the implementation of specific business logic.

Front-end development involves content including Html, CSS, JavaScript, Android development (using Java or kotlin), iOS development (using OC or Swift), a variety of small program development technology (class Html), with the front-end development tasks continue to expand, the front-end development of the back-end is also a more obvious trend. a more obvious trend, such as the application of Nodejs.

Back-end development usually requires different language choices based on business scenarios, and in addition, back-end development focuses on algorithm design, data structure, performance optimization, and other aspects of the specific functionality of the implementation of the part of the programming language can be used in Java, Python, or PHP and other programming languages to achieve.

Most think that the front-end development is relatively simple to start, the depth of the back-end and some difficult, front-end development and back-end development needs to be involved in different aspects can not say that the simple or which is difficult to know that each line of the introduction is very simple, but in-depth study will find their own difficulties. Ultimately, whether it is the front-end back-end of many technologies will be mastered each other some.