1. Basic Concepts 1.1 Ajax Ajax stands for “Asynchronous JavaScript and XML”. At its core it is made up of the JavaScript, XmlHttpRequest, and DOM objects: through the XmlHttpRequest object it sends an asynchronous request to the server, gets data back from the server, and then uses JavaScript to manipulate

1. Font-family The fonts you can use on a web page are limited to the handful of fonts already installed on the PC the browser is running on. Windows operating system, Chinese fonts: SimHei (Hei) SimSun (Song) NSimSun (New Song) FangSong (FangSong) KaiTi (Kai) FangSongGB2312 (FangSong GB2312) KaiTiGB2312 (Kai GB2312)

1. Basic Concepts Symmetric encryption: Symmetric encryption is an encryption method that uses a single-key cryptosystem, in which the same key is used both to encrypt and to decrypt the information. Because it is fast, it is often used to encrypt the transmission of large amounts of data. DES (Data

Author: Ruan Yifeng Publisher: Publishing House of Electronics Industry Publication year: 2014-8-1 ISBN: 9787121238369 E-book

In frontend-backend separated development, when the backend API is not finished, the frontend cannot continue debugging. So that frontend and backend can develop in parallel, the frontend needs a set of API interface environments — this is the Mock API. The diagram below lays out the development flow nicely. Without a Mock data step, frontend-backend integration takes up a great deal of time.