Programmer Think

9.1 Any ↔ character string When developing data applications, most of the data will not be generated in real time by JavaScript or user operations, but will be extracted directly from the data storage facilities of the server, and then transmitted to the client through network protocol for display. In this case, we can first introduce ...

background The document is very popular recently, and the boss wants it too. I was also very interested, so I went into the pit to study and practice. In the blink of an eye, a year has passed, and the project has achieved initial results, but the difficulties and challenges are becoming more and more difficult. So I deeply studied and adapted ...

Vue learning notes – 4 Vuex 4. Vuex Concept: a Vue plug-in dedicated to centralized state (data) management in Vue, which centrally manages (reads / writes) the shared state of multiple components in Vue applications. It is also a way of communication between components, and is suitable for communication between any components. Github ...

1, Front end sm4.js /** * base64js * base64js.toByteArray(d.input) * base64js.fromByteArray(c); *State secret SM4 encryption algorithm * @author wzk * @email 1216113487@qq.com *@ company Zhongke software */ (function(r){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=r( ...

catalogue Built in object Constructor Prototype object summary Built in object Built in object api: the object written in advance by the js author. There are some predefined methods. We can use them directly without caring about the principle api: predefined functions For example: Addition, deletion, modification and query of arr ...

catalogue Component communication The parent component passes data to the child component  props The child component passes data to the parent component Multiple parameters Communication between non parent and child components How many ways can Vue components communicate with each other?   slot Anonymous slot Named slot Slot sc ...

Use the FileReader object to view the MDN official description for details click here . Introduction to FileReader object Method of FileReader object: methodparameterbrief introductionexplainFileReader.readAsBinaryString(blob)Blob or File object to be readRead file as binary encodingThe specified Blob or File object will be read. When the r ...

Getting started with HTML Basics 1.1 overview of basic grammar HTML tags are keywords surrounded by angle brackets, such as < HTML >.HTML tags usually appear in pairs, such as < HTML > and < / HTML >, which are called Double tags. The first tag in the double tags is the start tag and the second tag is the end tag.Some specia ...

Regular expressions are mainly used to query and replace text content that conforms to a certain pattern (rule). They are powerful and flexible. They are often used in very complex queries. Compared with LIKE, the matching rules are very comprehensive. In MySQL, use the REGEXP keyword to specify the character matching pattern of regular expres ...

In increasingly sophisticated front-end applications, state management is a frequently mentioned topic. From the early days of slash and burn to jQuery, and now to the popular era of MVVM, the form of state management has changed dramatically. Instead of updating the view by maintaining a wide range of event callbacks and monitoring, we use two ...