javascript - Scope issue of parameters in JS function

1. Wrote a drop-down scroll bar to load more functions. The code is as follows. The dropload event is a + function that monitors the scroll wheel. When entering page A for the first time, the ajaxModel function is triggered and the method and param are passed in. However, When this screen of data is...

巴扎黑 2017-06-26 10:52:31 0  1  712

javascript - How to write tabs in a data-driven way?

I hope you can talk about examples of using js or jquery instead of vue and other frameworks. Sorry for not making it clear. What I mean is to use data to drive the update of Ui, instead of updating the data and keeping up with the new UI at the same time, like the following Example {code...}

黄舟 2017-07-05 10:38:32 0  2  3069

How to write php to update 500 pieces of data each time

Please give a pseudo code to update 500 pieces of data once in a loop.

仅有的幸福 2017-06-12 09:20:44 0  4  901

PHP JS mobile button changes color when clicked, and the selected numbers form an array

PHP JS The background color of the mobile number button changes color after being clicked. The selected numbers form an array. If the three number buttons 1, 3, and 9 are selected, the button will turn red. After clicking OK, the variable ABC=1, 3, 9 is written by yourself. It works on ios but not o...

HARDWARE 2018-03-06 00:10:45 0  0  1224

Questions about starting mongoDB

I first started mongodb with the command under Linux and ran it in the background, {code...} Then I want to check the data in the database, and found that one link is not connected. I don’t know why {code...} Is it necessary? Every time I check the data, I close the database and log in again and sta...

滿天的星座 2017-05-02 09:24:42 0  2  552

React - Using useMemo() still causes keyboard input to slow down

I have code like this, which has many input boxes, each input box is used to modify a price value. Since there are a lot of input boxes (3 prices per area and 3 pricing per price), to avoid re-rendering everything every time, I used useMemo on the function that updates the input box value, and in ad...

P粉340264283 2023-09-03 17:16:59 0  1  581

React Tab component does not update active tab when Redux store value changes

I'm using ChakraUITab component in a React application. I have a numeric value stored in Redux and I want to change the active tab based on that value. However, when I update the numerical value in the store, the active tab does not change accordingly. How can I solve this problem? The following is ...

P粉950128819 2023-08-31 17:49:11 0  2  590

Problem with nginx redirection with parameters

Well, I just changed the keyword to aaabbb. What this means below is that when I visit /aaabbb/anime, I actually request /ab_anime.php {code...} Then I want to bring parameters when I click in for the first time. At the same time, I cannot see it on the address bar, and then every time If you refres...

滿天的星座 2017-05-16 17:15:56 0  1  894

javascript - Update every second to determine whether a new array appears in the updated json object

This is what I think, create a global variable first, and compare it with the global variable every time you get a new json object to determine whether there is a new array or part of the value has changed {code...} I haven't put it into practice yet. The Lastdata shown is a global variable, and the...

某草草 2017-06-12 09:31:37 0  2  727

Create an animated counter in React.js: a step-by-step guide

I'm looking for a way to animate a counter in React. For example, I have 3 components with the following structure: Master: Logical component Counter (Master is the parent of logicComponent and Counter) The logical component passes a number to the master component which passes it to the counter whic...

P粉635509719 2023-10-21 19:46:40 0  1  700

python - version number comparison method optimization

Recently, I wrote a small method for the app version update function. It doesn’t feel very beautiful. How do you compare version numbers? Version number adaptation format: Pure numbers are separated by . {code...}

阿神 2017-05-27 17:39:41 0  1  730

What happens if I use thousands of setTimeouts?

Have a website on the server side via node.js, every time I refresh the page it generates a new code, I want to detect if 24 hours have passed since the last code generation, the problem is that for me to do that I need to figure out the 24 hours Is this past the point, if I use setTimeout() on the ...

P粉811349112 2023-09-10 15:08:09 0  1  605

Migrating to PHP 8.1 - How to fix deprecated passing null to parameter error - Rename build in function

PHP8.1 has deprecated passing null as a parameter to many core functions. My main problem is with functions like htmlspecialchars(php) and trim(php) where null is no longer silently converted to an empty string. To solve this problem without using a lot of code, I tried renaming the original built-i...

P粉420868294 2024-01-10 16:21:21 0  2  529

Save invoice headers and invoice lines on a single-page submission form using .NET Core Razor Pages

1. Explain that I want to open the "Create" page, fill in the invoice header data, fill in the invoice dynamic line data and save everything in one submission. (*updated code) I managed to solve the RowList error which did not allow me to add multiple rows: How to insert multiple rows usin...

P粉298305266 2024-03-29 20:07:24 0  1  463

php - Reuse of tp3.2 templates

When using thinkphp3.2, most of the pages with additions, deletions, modifications and searches are basically similar. But it needs to be modified one by one, modifying the list fields, modifying the addition, and editing forms. Repeating the work needs to be done many times. Are there any good idea...

黄舟 2017-07-03 11:41:24 0  1  1165

javascript - Baidu echarts series data update problem

Let me go directly to the demo address so that I can easily check the problem. The code is also written on the page by default. It requests once first, and then uses a timer to request data and update the chart at regular intervals. However, I found that after the request was successful, I wanted to...

黄舟 2017-06-26 10:56:56 0  1  811

Get and write all paginated data in a file via looped PHP API cURL

As a somewhat newbie to making API requests and coding appropriately, I would like help writing the appropriate code to loop, move the cursor to the next page and return all the data until there are no more pages. My initial code gets the first page of 50 results without looping. I just need help wr...

P粉652523980 2023-09-01 10:42:29 0  1  640

Company name registration form

FYI, new to coding, self taught, take it easy... I have a signup form that I use to create new SQL tables. The company name they enter will be the name of the new table created each time they log in. Everything is working fine except for the vulnerability in the table name variable. I'm using PHP an...

P粉904191507 2023-09-05 19:05:36 0  1  610

How to do proper pagination in Vue.js 2

I have a problem creating pagination using vue. My task is to make sure that when you click on the button's number, a new task in the jsonplaceholder is loaded. I have successfully loaded the first and second page. I think this is directly related to my this.fetchTodos() operation. I'm just learning...

P粉690200856 2024-03-27 23:17:56 0  1  443

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  830