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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11302

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 17615

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 11321

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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JavaScript: Enter the selector of the specified type (only three simple CSS selectors such as id, class, and tagName are supported)

1. Write a JavaScript function and input a selector of a specified type (it only needs to support three simple CSS selectors of id, class, and tagName, and does not need to be compatible with combined selectors). The problem is: the following regular matching cannot be understood, var reg = / ^(#)?(.)?(w+)$/img;var regResult = reg.exec(...

2017-06-26 10:57:53

How to continue filling out a form with Vue date picker Cypress

I try to use cypress to fill out a form. The form is built with Vue and looks like this The problem is, the scheduled date is a date picker that I populate using the cypresstype() command. For example cy.get('#dispatch-date').type('22-10-2022'); However, this is what the form looks like after entering the command. The date picker dropdown covers the rest of the form, not allowing cypress to Continue filling out the form. I tried clicking {enter} after entering the date but it submitted the form. I still

2023-08-29 18:47:55

javascript - Simple little question about selectors

Why does the following selector always report an error {code...} but changes the variable name and no error is reported {code...} Beginners encounter small problems when writing js, I hope someone can explain it.

2017-06-21 10:12:21

Is storing delimited lists in database columns really that bad?

Imagine a web form with a set of checkboxes (any or all of them can be selected). I chose to save them in a comma separated list of values stored in a column in the database table. Now, I know the correct solution is to create a second table and normalize the database correctly. It's faster to implement a simple solution and I want to get a proof of concept of the application quickly without having to spend too much time on it. I think the time savings and simpler code are worth it in my case, is this a reasonable design choice or should I just standardize this from the start? For more context, this is

2023-08-27 19:52:49

Will selecting specific columns affect the number of rows in MySQL?

I have a simple query with a few joins, but when I add columns to my select from the same set of joins, simply adding or removing columns from the select without changing any joins, the number of rows changes Variety.

2024-03-29 22:53:26

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Simple way to cache selectors in objects using jQuery_jquery

Course Introduction：This article mainly introduces the simple method of using jQuery to cache selectors in objects. jQuery is the most well-known JavaScript library. Friends who need it can refer to it.

2016-05-16 comment 0 1144

How to develop a simple date picker function using PHP

Course Introduction：How to use PHP to develop a simple date picker function Introduction: The date picker is one of the common functions in web development. It can help users easily select dates and fill in the form. In PHP development, we can implement a simple date picker function by using some open source libraries or writing code ourselves. This article will introduce a method to develop a simple date picker function using PHP and provide code samples for reference. 1. Preparation Before starting to write code, we need to do some preparation. First, we need

2023-09-21 comment 0 1670

jquery form object attribute filter selector instance analysis_jquery

Course Introduction：This article mainly introduces the jQuery form object attribute filtering selector, and analyzes the related usage skills of jQuery selector with examples. Friends who need it can refer to it.

2016-05-16 comment 0 1228

How to Select Specific Columns in a Table Using CSS `nth-child` Selectors?

Course Introduction：CSS Selectors for nth RangeTo select specific columns in a table, utilize the nth-child CSS selector. The provided selector, '.myTableRow...

2024-10-26 comment 0 682

Obtaining radio-select, multi-select, and selection box values in js form processing and serializing the form_javascript skills

Course Introduction：This article mainly introduces the relevant information on the acquisition of single-select, multi-select, and selection box values and the serialization of the form in js form processing. Friends who need it can refer to it.

2016-05-16 comment 0 1856

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