The implementation of watermark project and the optimization of two implementation schemes

For the watermark project, we propose two solutions   1, Using shadow dom to realize   1. Basic ideas Generate a shadow root, i.e. the root node of the shadow, through the method of "attachShadow", and then add watermark under the root node through circular statements, and use position to typeset absolute to make it full of containers ...

Posted by RobReid on Fri, 06 May 2022 09:24:58 +0300

The navigation and fixation at the bottom of the mobile terminal cooperate with Vue router to realize component switching

In our usual practice or actual projects, we often encounter such a demand: the navigation in the mobile terminal is not at the top or at the bottom, but at the bottom and fixed. When we click the navigation item, we will switch to the corresponding component. I believe that for many friends, this is a very simple requirement, and there are man ...

Posted by Avendium on Fri, 06 May 2022 08:25:27 +0300

The speed is increased hundreds of times, and the application of the data structure in practical work is recorded once

During this period of time, I wrote a lot of source code analysis. This article wants to change the taste and share with you a case I encountered in my work. After all, as a part-time worker, in addition to looking at the source code at work, bricks still have to be moved. This article will share a story of using appropriate data structures to ...

Posted by ready2drum on Fri, 06 May 2022 07:42:09 +0300

Developing front end using Visual Studio 2022

Most front-end development environments are based on node JS, I won't say much about the benefits. However, it is different from the back-end asp.net developed using visual studio Net core project debugging together, but it is not very convenient, so try to develop the front end in Visual Studio 2022. Create host project First create an empty A ...

Posted by ihenman on Fri, 06 May 2022 06:16:33 +0300

Basic use of bootstrap 01 front-end framework

I III. WWW       1.  What?             ①. Born in 2011, from Twitter, it is currently the most popular front-end framework             ②. Is a front-end framework for rapid development of Web applications and websites        & ...

Posted by senorpuerco on Fri, 06 May 2022 05:02:49 +0300

Detailed explanation of Composition API in setup function in vue3

Disadvantages of Options API First, let's talk about the disadvantages of Options API in vue2, and then the advantages of Composition API in vue3 In Vue2, we write components through the Options API: A major feature of the Options API is to write the corresponding function module in the corresponding attribute; For example, data defines data, ...

Posted by rimedey on Fri, 06 May 2022 04:57:02 +0300

Front end workflow

background When more than one person works on a project, it is always because the code style of everyone is not unified, and the style needs to be unified by means of document agreement. For example, the way of file naming, some people have uppercase initials and some people have lowercase initials. There are different styles in JS, TS and Vue. ...

Posted by X.Cyclop on Fri, 06 May 2022 03:43:34 +0300

8 common SQL misuses

preface MySQL still maintained a strong growth trend in database popularity in 2016. More and more customers build their applications on MySQL database, and even migrate from Oracle to MySQL. However, some customers encounter some problems in the process of using MySQL database, such as slow response time, full CPU, etc. Alibaba cloud RDS exper ...

Posted by edontee on Fri, 06 May 2022 02:24:05 +0300

JavaScript process control - Branch

catalogue if branch statement if else double branch statement Judge leap year cases if else if multi branch statement Ternary expression Case of digital complement 0 switch multi branch statement Judge week case ★★ display time case ★★ There are three main structures of process control, namely sequence structure, branch structure a ...

Posted by UTAlan on Thu, 05 May 2022 17:45:08 +0300

Translate Chapter 9 details of JavaScript Everywhere (^ ^)

Translate Chapter 9 details of JavaScript Everywhere (^ ^) Write at the beginning Hello, I'm Mao Xiaoyou, a front-end development engineer. Is translating an English technical book. In order to improve everyone's reading experience, the structure and content of the sentence are slightly adjusted. If you find any flaws in this article, or you ha ...

Posted by grigori on Thu, 05 May 2022 15:27:58 +0300