javascript - vue+vue-router+vuex+axios+elementUI uses the background management interface to report an error when clicking the menu after refreshing it

The requirement is to build a backend management interface with related functions of permission management. The relevant idea is based on the article addRoutes to implement the backend management function. The specific method is to return the permissions owned by the role in the backend when logging...

天蓬老师 2017-06-12 09:30:35 0  3  2556

Rewrite the title to: VueJS responsive element with one item set to true and all others set to false

I'm developing an application using VueJS's composition API. I have set up a responsive element as shown below constsections=reactive({section1:true,section2:false,section3:false,section4:false,section5:false,section6:false}) when every button on the page is When clicked, I want to show and hide ind...

P粉786800174 2023-08-28 20:55:03 0  1  566

Permissions issue

According to the teacher's code, if the system administrator adds all submenus, and the developer cancels the two permissions of the administrator to save and the administrator to add, after testing, these two permissions are still available. According to the code, I only see that the code is only b...

奋斗 2018-12-10 14:14:25 0  0  1206

php - How to output image in base64

It's like this. Today I wrote a template for PHP to generate verification codes based on the information on the Internet: {code...} But I don't want him to output the image directly, but output the image in base64. How should I do it? I have tried many methods without success, unless it is necessary...

伊谢尔伦 2017-05-24 11:32:19 0  1  913

css - Are there any standards for blocks in BEM? When is it decided to partially extract an element as a block instead of its parent (Element)?~

Are there any standards for blocks in BEM? How do you decide to extract a part into a block instead of an element of its parent? I don’t have a good grasp of the granularity, which makes me struggle to death when writing styles~

滿天的星座 2017-05-16 13:20:50 0  1  610

android - How to create an Observable based on an existing function or function callback in RxJava?

In the process of using Rxjava, there may already be many function callbacks, so how to create a data stream based on the parameters of these function callbacks? For example, if I need to modify onKeyDown(), how can I process a specific sequence of user input based on the different keystrokes, such ...

怪我咯 2017-05-16 13:28:50 0  1  765

laravel - Design issues about enterprise internal system architecture design

The company currently has about 500 employees and is considering implementing some management systems. Already online is HRMS (which stores basic employee information and also involves some basic personnel processes), which is developed based on Laravel 5.2. I didn’t expect so much when it was origi...

曾经蜡笔没有小新 2017-05-16 16:49:45 0  1  762

The "v-model" directive requires valid attribute values ​​as LHS

I have a Vue application and I have a table where each row has its own id. I then need to show/hide some elements based on a condition in the v-model directive which compares the row ID to the value in the model. The code looks like <b-loadingv-model="actionLoading===table.row.id">&l...

P粉011912640 2024-03-27 15:53:34 0  1  456

javascript - Please teach me the JS native code to change the color of an element when you move the mouse to it, and restore it when you move it away.

I learned bubbling events, typed the code and made small details changes based on online articles. I have a question: 1. The ultimate goal is to achieve the color change when the mouse moves up. How to achieve this? 2. How to solve the problem that when the next li element is clicked, the color of t...

世界只因有你 2017-05-19 10:30:58 0  7  949

Ternary Operator for If/Else if/Else Statements

I'm trying to do some conditional styling in Reactjs. I'm very new to React so there may be a better way to do this, but searching the internet to no avail. I'm trying to check screen size and style based on said screen size. In this use case, I want to center some text based on the screen size. Can...

P粉320361201 2024-03-28 19:15:53 0  2  349

Learn about open source a high-speed backend development framework that is good-looking and can be commercially used.

Developed based on ThinkPHP6 version, studying this manual will help you quickly master the development architecture of this framework! Please note that the installation script file will be automatically deleted after the framework is successfully installed! ! ! If the permission issue is not delete...

风筝 2022-05-25 11:23:56 1  1  1224

javascript - How to open another process after closing the main process in node?

Although this requirement seems a bit illogical, what I need to achieve is an automatic update effect, compress the ZIP downloaded from the server to another folder, and then close the old version before opening the new version. Because it is based on NW.JS and does not support multi-window preview,...

習慣沉默 2017-05-16 13:45:05 0  1  607

Why is the data I'm binding in a Vue 3 form not updating when printed on the console via a function?

I've created a form component in Vue3 and I'm trying to bind a reference object to an input element. Based on my understanding of two-way binding and the way Vue has behaved in my past works, I would expect any changes to affect my reference. Immediate object without any operations like I have to do...

P粉354602955 2023-09-04 11:50:33 0  1  542

Set carousel item count based on saved localStorage value using TailwindCSS and Flowbite

Adding a carousel to my page using TailwindCSS and Flowbite. I also added a toggle switch element that basically allows me to cycle between the two items in the carousel (checked = slide 2, unchecked = slide 1). This works - where I get stuck is trying to set it to "Slide 2" on load based ...

P粉043566314 2024-03-21 21:45:29 0  1  358

javascript - Waterfall sequence problem

Recently I came across a strange requirement: the pages need to be arranged in a given order, and a waterfall flow layout needs to be implemented; but I don’t think the principle of waterfall flow is based on which column has the shortest height? Personally I feel it is impossible to achieve. So I d...

ringa_lee 2017-05-19 10:37:45 0  2  551

cypress - How to get selection element by selected value?

I'm trying to use Cypress in a Vue project. I have a page that has a table with many rows. Each row has a selection label. This selection label has different options and the current status of each row, such as: "Processing", "Awaiting review", etc. By changing this, there are som...

P粉034571623 2023-09-01 14:36:33 0  1  574

javascript - Various design discussions on the interface main menu generation logic

The main menu is the kind of background management system in which you can control whether to display a certain menu or a certain function in a certain menu through configuration. Regarding its design and implementation, my personal summary is as follows. (1) Use a database table to save the main me...

大家讲道理 2017-06-26 10:49:08 0  1  721

Display different content based on screen width

For one element I have two different texts based on the screen width. I want to display narrow when the screen width is less than or equal to 400px. I want to display large when the screen width is larger than 400px. Here is the code: https://jsbin.com/qagetoseva/edit?html,css,output But the problem...

P粉904450959 2024-04-01 22:53:42 0  1  431

javascript - Ask a very confusing question? About jQuery's is(":animated")

What is the implementation principle of is(":animated") in jQuery? What is the basis for determining whether the current element is animated? Is it exercise time? Or is it judged by some other attributes? I hope a passing expert can give me some pointers...

phpcn_u1582 2017-06-26 10:55:56 0  1  766

javascript - A question about the mousdown event

Please help. I used $.animate to implement an event based on the page element mousdown. After doing it, I found a problem. After clicking the mouse multiple times in succession, the animation will be played repeatedly multiple times. The effect I want to achieve is to start from the beginning every ...

世界只因有你 2017-05-19 10:14:34 0  1  432