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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11324

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 17630

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 11334

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.

javascript - How to implement circuit diagram using echarts? ?

I would like to ask, you masters, how can you achieve this effect? Because the nodes on the line need to be dynamically rendered in the background and are not fixed. There is no need for Amap or Baidu maps or anything like that. It is a pure data visualization display.

2017-06-10 09:48:57

How can I change the selected checkboxes (select all) after unchecking one of the following checkboxes?

I just created the check all script in JS but don't know how to implement it to check if all my checkboxes are still checked and if not - uncheck my "select all" checkbox. Any ideas on how to do this? This is my code, please have a look, pure JS functiontoggle(){letselector=document.querySelector('.chbx_selector');letselection=document.querySelectorAll('.ch

2024-04-01 17:46:03

Scatterplot points do not maintain values when zooming in d3.js

This is my first time using d3.js, so please bear with me. I implemented it as pure JavaScript in vue.js file. I'm trying to make a scatter plot with zoom functionality. So far I have almost everything working fine, but when I zoom I notice that the x-axis is not scaling correctly, but the y-axis is working fine. For example, when looking at the original plot, a point might be around 625 on the x-axis, but the same point will be smaller than 600 when zoomed in. This doesn't happen on the y-axis - the points scale correctly. I'm assuming there's something wrong with the scaling of the x-axis in the scaling function, but I just can't figure it out.

2024-04-06 18:16:26

Users can adjust the width of side-by-side divs by dragging them

I have two divs side by side. If there is any simple solution, allow the user to resize the width of both divs by dragging. If the width of one div increases, the width of the other div decreases, keeping the sum of the widths of the two divs unchanged. It would be great if it could be implemented using pure javascript or css. Feel free to add any other items like divs. The codes of the two divs are as follows: .left{float:left;width:49%;min-height:50px;border:2pxdashe

2023-08-28 17:28:25

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

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