Asksearch_php.cn

Community Learn Tools Library Leisure

English

Popular searches：
PHP
MySQL
jquery
HTML
CSS

javascript - Questions about timers and preventing continuous clicks

{Code...} As above, I used vsg to randomly generate 30 circles. I hope that when I click on each circle, the circle will become larger and more transparent until it is deleted from the DOM tree; my code can slowly realize this function one by one. But once you double-click quickly, the error as show...

高洛峰 2017-06-21 10:12:14

timer

I have learned how to clear the timer, but if I click to clear it, how do I start it after clicking it?

... 2018-07-14 16:05:51

javascript - Regarding the problem of variables in vue methods.

Why do I have to use this to save the timer variable, otherwise it will prompt Undefined.

高洛峰 2017-05-19 10:17:09

Change page refresh timer

I have a specific requirement that my page refreshes after 2 seconds. I have used this code to achieve this - <?php$page=$_SERVER['PHP_SELF'];$sec="2";?><html><head><metahttp-equiv="refresh"content= "<?phpecho$sec?>;URL='

P粉354948724 2024-02-26 15:24:20

javascript - timer anonymous function problem

{Code...} Could you please explain the principles behind it?

高洛峰 2017-05-19 10:36:56

javascript - Problem with timer in each method

{Code...} The first question is whether the final appearance of if(num==1000) and if(num==900) are different? When num==900, except for the last one which differs by a few 900, the others are all 900. When it is 1000, can all li become 1000? The second question is that the function in the timer is w...

为情所困 2017-05-18 10:58:13

How to create a circular border in CSS where x% is red and the rest is white, where x is a state variable in a JavaScript file?

I'm making a timer app that initially has a white surround around the remaining time in the timer. I want the ring surrounding the remaining time in the timer to gradually turn red, and then turn completely red when the timer runs out. {remainingTime.hours}:{remainingTime.minutes}:{remainingTime.sec...

P粉482108310 2023-07-24 18:47:03

javascript - A question about react

Below is a simple dynamic effect written in react, but some parts are unclear. Why do we need to add bind(this) at the end of the timer? What is its function? What knowledge point do I lack that makes me unclear about adding bind(this)? {code...}

PHP中文网 2017-06-15 09:23:44

Application of auction product timer in archive page

The auction product timer is working fine on a single store page, I want to add it to the store archive page, but it only shows up on the first product in the store archive and not the rest. Based on the Product Sales End Countdown Timer on WooCommerce Single Product Page answer code, here is my cod...

P粉412533525 2023-09-08 20:00:35

php - sql server2012 database data loss

The timer program reads data from redis every 5 minutes for table storage. Later, it was discovered that there were multiple tables with data loss from April 27 to May 3 as shown in the picture. What are the reasons for data loss? The code for joining the team is as follows:

过去多啦不再A梦 2017-05-24 11:31:01

javascript - use of setTimeout

http://ife.baidu.com/course/d... I am doing a question from Baidu Front-End Academy, the link is as above. The topic is to implement a binary tree traversal. The js code is as follows: {code...} There is no error in the code, but I can’t understand why timer+=100 is used for the time in setTimeout? ...

phpcn_u1582 2017-07-05 10:42:09

cocos2d-x - How to set timer in MVC pattern?

Recently I am trying to develop a Cocos2d-x game using the MVC model. How should the timer (such as the countdown before starting the game) be placed? The countdown int variable must be put into the Model, but where to modify this value? It is processed in the Model and the event is emitted after th...

phpcn_u1582 2017-05-16 17:05:38

Unable to create/set up connection: Unknown system variable 'query_cache_size'

I'm running an application using JDBC and MySQL, using hikari pool, but it cannot build due to the following error: ","message":"HikariPool-1-Starting..."}{"timestamp":"16Jun202313:42:04,078" ,"thread":"Timer-0&q

P粉864872812 2023-09-03 23:32:54

How can I use javascript to record how long the user stays on the page?

I want to write a js that counts how long users stay on the page. There are currently two methods, but neither of them is ideal. Timer, use ajax to send data to the database at certain intervals. This method cannot guarantee accuracy and will affect efficiency. Use the onunload event to send data wh...

给我你的怀抱 2017-05-19 10:40:39

javascript - Native JS and jQuety about setting image carousel timer

Regarding the image carousel, setting up automatic playback: If you use native JS code, I currently know two methods, the first one: {code...} The second one (where oBtnNext refers to a button obtained): { Code...} Here comes the point. The question is, if jQuery($("#next") is used is equi...

大家讲道理 2017-07-05 10:58:00

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

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

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

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

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