javascript - JQuery each traverses the A tag to obtain the href and takes the value of the attribute in the link and adds the attribute of A

The original HTML code in the page: {code...} The final output effect I hope to achieve through jquery: {code...} My current jQuery code: {code...} Please give me some advice! !

伊谢尔伦 2017-05-19 10:40:16 0  1  723

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  867

javascript - Why does my router-link in vue not work?

{code...} {code...} This is the content of App.vue. In fact, the page display has been mounted as a tag, but clicking has no effect, and there is no effect of clicking to change the component {code. ..} This is the code for one of the routers. The other two are basically the same. How can I get the ...

漂亮男人 2017-05-16 13:38:06 0  2  699

Buttons on mobile remain focused or active, causing issues with CSS animations

I'm trying to achieve an animation every time I click a button, it works fine on desktop but I can't achieve the same effect on mobile. I have to click the button first, then click somewhere else to de-focus the CSS, then click the button again to get the animation effect. Below is the code snippet....

P粉043295337 2023-08-28 15:14:37 0  1  522

Optimize your browsing experience by opening URLs in new tabs or reusing existing URLs where possible

Now I have a link <ahref="blabla"target="_blank">link</a> however, this always opens a new tab. I want the following effect. If the user already has a tab with the same URL, reuse the tab and refresh if possible. Otherwise, open a new tab. How can I achieve this using...

P粉939473759 2023-08-24 19:03:55 0  2  502

javascript - Issues about JS event delegation operation ul li tag

Let me first talk about the function I want to achieve, which is to click on a li tag in a ul to remove the currently clicked li. But after trying it again and again, I couldn't achieve the effect I wanted. The current question is as follows: How to use a more direct method to obtain the currently c...

巴扎黑 2017-06-28 09:27:49 0  2  869

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  822

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  724

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  615

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  577

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  1004

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  506

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  698

Spades, Diamonds, Hearts, Clubs => styles do not change font color in Chrome for Android

In Google Chrome on Windows, the card suit symbols (spades, hearts, diamonds, clubs) are colored correctly using the "style" attribute. Unfortunately, the same page displayed in Google Chrome on Android does not display the colors I defined but uses the default black and red. (See the atta...

P粉896751037 2023-09-05 15:25:13 0  1  757

How to hide mui TextField label?

I'm developing a Nextjs app and I have a dashboard navigation bar built with mui that contains a notification that opens the notification box, which is built with regular HTML and CSS. dashboard-navbar.js: importNotificationBoxfrom"./notification-box/notification-box";//...exportconstDashb...

P粉239164234 2023-09-05 15:41:00 0  1  686

Custom Bootstrap 5 carousel on mobile (multiple items, but not in one row)

I'm having trouble trying to customize the carousel layout on mobile devices. I want it to show every item of the carousel on mobile instead of just one, but after trying with some CSS and JS, especially using displayfloat or max-witdh I'm just starting to think this isn't possible, Or I don't know ...

P粉763662390 2023-09-05 11:53:56 0  1  594

How to use Firebase Authentication with multiple login methods and role-based authentication?

I am creating a react.js application with nodejs as backend and I want to use these authentication methods to login using email/password, login using google and login using phone, now I want to keep the uniqueness of the user while signing the user's name for Any of these, I will also get other deta...

P粉574695215 2023-09-05 12:18:10 0  1  658