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Self-study IT network Linux load balancing video tutorial

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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

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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

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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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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

PHP full text search functionality using AND, OR and NOT operators

Newbie question: I'm trying to implement a full text search on a search string using php and eloquent. $searchstring="+(victimsuspect)+crime-covid";$searchresult=RssItem::whereRaw("MATCH(description)AGAINST('$searchstring'INBOOLEANMODE)")->ge

2023-09-05 15:06:32

Shortest way to convert all PHP types to string

I'm writing a general system that I hope can one day be applied to fields like medicine (i.e. it's "scientific"). I think the best way is to represent all the data in php with strings (true will be "true", false will be "false" and so on). The reason for this is that in php any value has a unique string representation (such as the php code itself). I post this question to speed up the design process of this program. Some values are easily converted to strings: numbers, booleans, etc. Some are not easy: objects, arrays, resources. I think the transfer object and

2023-09-05 15:34:44

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How to encapsulate plug-ins in native js

Course Introduction：This time I will show you how to encapsulate plug-ins in native js, and what are the precautions for encapsulating plug-ins in native js. The following is a practical case, let’s take a look.

2018-03-06 comment 0 2460

Native JS encapsulated Ajax plug-in (same domain, jsonp cross-domain)_javascript skills

Course Introduction：This article mainly introduces the native JS encapsulated Ajax plug-in in detail, and introduces cross-domain requesting resources between different domains.

2016-05-16 comment 0 2212

PHP development framework Yii Framework tutorial (38) Zii component-ProgressBar example

Course Introduction：CJuiProgressBar displays a progress bar. It encapsulates the JUI Progressbar plugin. CJuiProgressBar displays a progress bar. It encapsulates the JUI Progressbar plugin

2017-01-22 comment 0 1680

Source code research on js framework

Course Introduction：Underscore js source code Underscore js does not extend the native JavaScript object, but encapsulates it by calling the _() method. Once the encapsulation is completed, the native JavaScript object becomes an Underscore object. Determine whether a given variable is an object Is underscore.js source code Underscore.js does not extend the native JavaScript object, but encapsulates it by calling the _() method. Once the encapsulation is completed, the native JavaScript object becomes an Underscore object.

2017-08-10 comment 0 1491

VUE3 basic tutorial: Use Vue.js plug-in to encapsulate the progress bar component

Course Introduction：In web development, the progress bar component is a common UI component used to display the progress of a task or page loading. In Vue.js, based on its powerful componentization feature, we can easily encapsulate custom progress bar components and encapsulate them as plug-ins for reuse in various Vue.js applications. This article will demonstrate how to use the Vue.js plug-in to encapsulate the progress bar component through a complete Vue.js progress bar component example. VUE3 basic tutorial: Use Vue.js plug-in to encapsulate progress

2023-06-15 comment 0 3183

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