Tag:Modifier

  • From AOP to method combination

    Time:2021-7-31

    “Actual combat elisp” series aims to tell my experience of using elisp to customize Emacs, and invite friends of Emacs to give me advice – if there are really a large number of Emacs users, hahaha. Emacs’s org mode uses a markup language called org. Like most markup languages, it also supports unordered lists and […]

  • Vue modifies the paged component view of elementui, and there is no update problem

    Time:2021-7-23

    Today, I encountered a small problem that I didn’t pay attention to. El pagination has a property of current page.Today, I want to manually modify the bound variables in methods to achieve the effect of page number modification. I found that the paging component view did not render, but remained at the original page number.After […]

  • Parsing JS regular expression

    Time:2021-7-22

    JS regular expression Regular expression is a logical formula for string operation Here we recommend an online testing website for regular expressionsRegular expression online testing regular grammars In JavaScript, a regular expression is also an object, an index type. *Using a regular expression literal quantity is the easiest way. Two / are regular expression delimiters. […]

  • These java game code optimization details, you need to pay attention to

    Time:2021-7-22

    Many people who study java know that Java programmers can’t do without repeatedly knocking code! Continuously optimize the code, which means to further improve the efficiency of code operation. So, what are the details of code optimization? Let Xiaoqian give you a brief explanation, hoping to help students who want to master java knowledge! Picture […]

  • Mongodb (1)

    Time:2021-7-21

    Let’s first understand the non relational database and relational database. First, we need to understand the relational database, such as Oracle, MySQL and so on. Relational database and non relational database Essence: the essence of non relational database. In fact, non relational database is the castrated version of traditional relational database functions. It can greatly […]

  • Mongodb (2) update modifier

    Time:2021-7-20

    Initial understanding of update modifier $set modifier db.workmate.update({“name”: “MinJie”}, {$set: {sex: 2, age: 21} }); //Modify nested content db.workmate.update({“name”: “MinJie”}, {$set: {skill.skillThree: “word”} }) $unset for deletion db.workmate.update({“name”:”MinJie”}, {$unset: {“age”: ”}}) //This successfully deleted the age field If you want to add it again, you can use $set to add it, but the added content […]

  • Soul torture: do you know all the Vue template syntax?

    Time:2021-7-17

    By jeskson Nuggets| https://juejin.im/user/5a16e1… You Yuxi is the founder of vue.js. In 2014, vue.js was officially released, and in 2015, version 1.00 was officially released. Vue.js is a progressive JavaScript framework with declarative rendering, component system, client routing, centralized state management and project construction. Vue.js is a set of progressive framework for building user interface. […]

  • Soul torture: do you know all Vue template syntax?

    Time:2021-7-16

    By jeskson Nuggets| https://juejin.im/user/5a16e1… You Yuxi is the founder of vue.js. In 2014, vue.js was officially released, and in 2015, version 1.00 was officially released. Vue.js is a progressive JavaScript framework with declarative rendering, component system, client routing, centralized state management and project construction. Vue.js is a set of progressive framework for building user interface. […]

  • Understand the nginx server and location block selection algorithm

    Time:2021-7-1

      Original text:Understanding Nginx Server and Location Block Selection Algorithms | DigitalOcean introduce Nginx is the most popular in the world   Web   One of the servers. It can handle high loads successfully with many concurrent client connections and can be easily used as a   Web   Server, mail server or reverse proxy server. In this guide, we’ll discuss some behind the […]

  • C + + object oriented: C + + inheritance

    Time:2021-7-1

    Inheritance is the most important concept in object-oriented programming. Inheritance allows us to define a class based on another class, which makes it easier to create and maintain an application. In this way, we can reuse code function and improve execution efficiency. When creating a class, you don’t need to rewrite new data members and […]

  • Visibility of objects – volatile

    Time:2021-7-1

    Author: Tangyuan Personal blog:javalover.cc preface Hello, officials. I’m tangyuan. Today I bring you the visibility of objects volatile. I hope it can help. Thank you If there is any mistake in this article, I hope you can point it out. Thank you very much brief introduction When a thread modifies a shared variable (non local […]

  • Implementation method of two way binding and transferring value for Vue parent child component

    Time:2021-6-30

    V-mode can only be used for a single bi-directional binding value. Sync can support multiple bi-directional binding values. Of course, you can refer to your own usage scenarios to distinguish which one to use An example of bidirectional data binding between father and son through. Sync Subcomponents <template> <view> < button class = PZ BTN […]