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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11369

Course Introduction："Self-study IT Network Linux Load Balancing Video Tutorial" mainly implements Linux load balancing by performing script operations on web, lvs and Linux under nagin.

Shangxuetang MySQL video tutorial

Course Advanced 17681

Course Introduction："Shangxuetang MySQL Video Tutorial" introduces you to the process from installing to using the MySQL database, and introduces the specific operations of each link in detail.

Band of Brothers front-end example display video tutorial

Course Advanced 11384

Course Introduction："Brothers Band Front-end Example Display Video Tutorial" introduces examples of HTML5 and CSS3 technologies to everyone, so that everyone can become more proficient in using HTML5 and CSS3.

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React nested accordion parent not updating height

I'm trying to build a mobile version of my homepage and there seems to be a bug with my nested accordion "items" where it doesn't display the correct height of the bottom item section when first opened. To open it, you first click on the project text, then it lists the projects, then click on the project to toggle the project card. (Updated) I believe this is happening because my parent accordion is not re-updating its height when the child accordion is opened. Do you know a good way to do this? Or if necessary, should I restructure my components in a way that makes this possible? The difficulty is that Accordion accepts children and

2024-02-21 15:55:48

Why does Vue DOM change so slowly?

I have a list with 2000 input checkboxes. When selecting them all at once, there is a noticeable delay of about 2 seconds (and the browser freezes). This seems to be the case with Vue and React, but not with Svelte, jQuery or vanilla. With over 5k checkboxes it becomes a very annoying 3-5 second blocker... why does the re-render take so long? How can I overcome this update delay using Vue.js? (Pagination or lazy-loading solutions don’t really solve the problem; they just avoid it.) Here’s what

2024-03-26 10:09:21

Ways to fix issue 2003 (HY000): Unable to connect to MySQL server 'db_mysql:3306' (111)

I recently tried to containerize my FastAPIPython server (also for replication/doubling purposes). Before, I had just a MySQL server in a Docker container and everything was fine, but when I also made my web server a service, it couldn't connect to the MySQL server, so now the application doesn't work. Below is the code snippet of the server database initialization connector in the application fromfastapiimportFastAPIimportmysql.connectorapp

2023-09-05 11:18:47

Experiment with sorting after query limit

So this is my first question here, please forgive me if something is wrong. I'm trying to make a sort query based on constraints. So there is a Customers table with 90 records. I want to first perform a query limited to 3 records, and then sort the results of this query by a column called ContactName. I think this might be a nested query. Nested queries run fine in SQLServer, but don't know how to implement it in MySQL. Limit query: Select*fromcustomerslimit

2023-09-05 14:46:42

CSS Grid: Create new row when child content overflows column width

I have a two column layout based on CSS grid. When the content of the second column exceeds 1fr I want to create a new row. As it currently stands, the content simply overflows the column. One requirement of this layout is that the items in the right menu column are in one row. I achieve this with: .right-menu{...grid-auto-flow:columndense;...} If I remove the grid-auto-flow attribute, the overflow stops. However, the items are now stacked into multiple rows, which is not what I want. I also tried converting .ri

2023-09-05 15:18:28

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Detailed explanation of C++ function recursion: recursively find elements in a list

Course Introduction：The steps to find elements of a list recursively are as follows: Recursive basic condition: If the list is empty, the element does not exist. Recursive procedure: Use a recursive call to find the remainder of the list and adjust the returned index. Check the first element of the list: If the first element is equal to the element you are looking for, then the element is at index 0. Not Found: If neither recursion nor first element check is found, the element does not exist.

2024-04-30 comment 0 732

Let's talk about how golang uses recursion to reverse linked lists

Course Introduction：Reverse linked list recursion golang In golang, reversing linked lists can be implemented using recursion. In the recursive function, we first need to pass the next node of the current node into the recursive function as a parameter, and then let the current node point to the node next to the next node. Finally, the return value of the recursive function is returned, which is the new head node. The following is the golang code that uses recursion to reverse the linked list: ```gotype ListNode struct { Val int Next *ListNode

2023-03-29 comment 0 1295

How to Build an Unordered List Menu Tree in PHP/MySQL Without Recursion?

Course Introduction：PHP/MySQL Unordered List Menu Tree Construction: A Non-Recursive Single Database Query ApproachBuilding unordered list menu trees from database...

2024-11-03 comment 0 907

How to Calculate Sum of List Integers Using Recursion in Python?

Course Introduction：Understanding Recursion in Python: Summing List IntegersRecursion is a programming technique where a function calls itself repeatedly to solve smaller instances of a problem until a base condition is reached. In Python, we can apply recursion to vari

2024-10-21 comment 0 814

How to use PHP recursion to reverse a linked list

Course Introduction：This article will introduce how to use PHP to implement the function of recursively reversing a linked list. If you don't know much about concepts such as linked lists and recursion, you can first learn the relevant basic knowledge on your own.

2023-03-23 comment 0 1334

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