javascript - A js exercise question, why the last getElementsByTagName('a')[0] here is 0

{Code...} The effect of this implementation is the effect of adding and deleting the last column in a table. I don’t understand why oTd.getElementsByTagName('a')[0].onclick after createElement creates the a tag adding and deleting function. =function() The TagName selected here is [0], no...

女神的闺蜜爱上我 2017-06-26 10:57:27 0  4  869

Title rewritten as: flexbox menu and table with title - is it possible to truncate the title based on table width?

I want to achieve something like this by using flexboxCSS. The menu is fixed width, but the table can grow automatically, and the header should not exceed the table width, even if it is long. In other words, the table should be able to stretch the column containers, but the headers shouldn't. +----+...

P粉642920522 2023-09-06 17:30:06 0  1  441

In PHP MySQL, add default POST values ​​to dynamically created input row fields.

I'm developing a small HTML form integrated with a table. There is an input field in the table called "name" which shows the current date as default value. This works great for the first row. However, when I add more rows dynamically, the new input fields don't show the default date value....

P粉409742142 2023-07-30 10:10:35 0  1  434

javascript - js scroll slides items near the top to show at the top

A function I want to implement now is to slide the sliding list. When the sliding is still, the items near the top are displayed at the top. Like this: (The force can be light or heavy, and it can stop anywhere when the slide is still). Has anyone done this effect? ​​Please give me some advice. Than...

PHP中文网 2017-07-07 10:34:23 0  1  3432

How to allocate models in the MVC model of a website.

In the MVC model, the controller is a pipeline and the Model is the processor. But many times the Controller will need different contents from different tables. In this way, there will be many functions in the Model such as get_name, get_info, get_id, etc. that can be completed with just one Query. ...

巴扎黑 2017-05-16 17:06:54 0  7  581

javascript - How to achieve the horizontal sliding deceleration effect of the mobile website navigation bar

The navigation bar of the mobile version of major websites can generally slide horizontally. After touching and sliding away from the mobile phone screen, there is a decelerating sliding effect. I really like this function. I searched a lot on the Internet and all I found were introductions to js to...

给我你的怀抱 2017-06-28 09:27:42 0  1  911

angular.js - angular project version management

Based on a completed spa project, multiple versions may be derived. Apart from different style interactions, these versions share all other logic. Is there any good way to manage these projects conveniently? Achieving a common core function upgrade, and all other projects are smoothly upgraded. Hope...

phpcn_u1582 2017-05-15 17:05:09 0  3  596

Content overflow in window prevents scrolling and hides new content

I'm currently building a roulette system program (this is more to stop me from placing bets than placing bets!) and I'm just doing the basic framework, but already have an issue with the main window "#results" not scrolling full of result. The scrolling needs to follow the latest row of co...

P粉106715703 2024-04-03 21:24:55 0  1  492

Is there a way to achieve smooth scrolling animation when using the scroll wheel?

I'm trying to make it so that when I scroll the page it moves smoothly instead of the "jumpy" way it does when using the scroll wheel. Most of the sources I've seen related to this involve smooth scrolling when clicking a button or link, like what react-scroll provides, but I specifically ...

P粉118698740 2023-08-16 16:40:27 0  1  612

How do I ensure that the input field is wide enough to fully display the content?

I'm using a Vuetify textfield component in a table with many columns. Maybe the component contains too much content to display, and from a user experience perspective inspecting the content by scrolling within the field would take too much time if there are many cells. Pure HTML Example Vuetify Exam...

P粉014218124 2023-09-02 22:36:56 0  2  573

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 wo...

P粉178132828 2023-09-05 11:18:47 0  1  829

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 ContactNam...

P粉237125700 2023-09-05 14:46:42 0  1  729

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: ...

P粉212114661 2023-09-05 15:18:28 0  1  619

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

P粉076987386 2023-09-05 15:06:32 0  1  581

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...

P粉369196603 2023-09-05 15:34:44 0  1  1009

How to get average of DATETIME column in MySQL while grouping by other columns

I'm creating and populating a MySQL table using the following query: SETtime_zone='+00:00';CREATETABLEtimestamp_n_datetime(idINT,timeDATETIME,avg_timeDATETIME);INSERTINTOtimestamp_n_datetime(id,time,avg_time)VALUES("1","2023-01-0310:

P粉460377540 2023-09-05 11:46:21 0  1  507

Multi-device (mobile phone) synchronization - React Native

I'm trying to create a Lightshow that will launch on all users' mobile devices at the same time (can have up to 2000-3000 users). All users will use the Internet (Wi-Fi or mobile data). In our FE we use Apollo for subscriptions and it works like a charm. But the problem is, user A can get subscribed...

P粉151466081 2023-09-05 11:58:38 0  1  699