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javascript - How to design the return code of the project so that different return codes represent different meanings?

This is the return code of the WeChat public platform interface. When working on a project, you need the API interface return code. I want to know how to design the API interface return code? What I mean is how to design different return codes to represent different meanings. For example, 40001 mean...

高洛峰 2017-06-12 09:19:41

Can multiple JSON-LD Schema.org tags represent the same "object"?

I have a website where the client requests JSON-LD (not microdata) schema.org tags. One of the things they want is a basic "WebPage" tag on each page that contains some information about the content on each page. The other is "FAQPage", which is only added on specific FAQ pages. ...

P粉289775043 2024-03-30 11:58:39

How to fill an array with JSON objects?

I have a file parts.json which is a JSON file containing an array of objects representing some vehicle spare parts

P粉470645222 2023-07-20 12:47:05

Javascript compares strings of different encodings

How to compare two strings with different encodings in javascript {code...} Output {code...} The encodings are different but the characters they represent are the same. How to compare to return true

三叔 2017-07-05 10:43:04

Place responsive blocks in flex columns

I have a gaming website that has a header, board, and footer. I need all three to fit inside the viewport. The board should be smaller to achieve this. Minification is the problem I'm having. I've been able to get the width responsive but not the restrictive height. The board should remain square an...

P粉545682500 2023-09-03 19:51:51

Problem for beginners - phpstorm cannot delete a certain character in the string and reports an error. How to solve it?

<?php $string='king'; $string{1}=''; echo $stringWarning: Cannot assign an empty string to a string offset in E:\phpstudy\demo1\.....This code is very simple and should be no problem. It can be executed in the video tutorial, but my computer just executes the report

Wilson 2018-11-18 12:32:06

javascript - tree structure effect

Clicking on the customer will bring up the customers belonging to the current user, clicking on the customer will bring up the customer's business, and the top-level business will come out. . . . What is the best way to display this kind of tree effect? How to do it, the masters will take action

阿神 2017-06-28 09:23:51

mongodb - mongo aggregation query grouping, finding the maximum value

Let me present the case first, so that everyone can understand what I mean: {Code...} The above link is an ordinary sqlgroup query, but the problem I am encountering now is that using mongo to perform group query and aggregation query is really getting old. Damn it, here is the simulated data: (Plea...

phpcn_u1582 2017-05-17 10:02:55

tomcat - java data storage problem

As the title states, there is a login system, but the old project does not have a cache (I don’t have the right to add it), but different services have to use the data from previous http requests (distinguished by the user), and I want to save it to avoid repeated http requests every time. a waste o...

迷茫 2017-06-12 09:21:38

How to render data through DOM instead of through table

I have a question about an application I'm creating, I'm using an Oracle database and I'm getting information from the database and presenting it on the screen via a table, but I'd like to try processing the data individually, for example creating a paragraph and displaying it a value. I can only pr...

P粉207483087 2024-04-04 18:17:27

Dynamically add :hover effects to multiple elements

Is it possible to add a hover effect to multiple elements programmatically? In our system, where there are multiple elements that represent a single unit (but need to be separated into multiple elements for other reasons), in some cases they should be recolored together on hover. Is it possible to a...

P粉203792468 2023-08-15 23:49:58

How to represent inheritance in database?

I'm thinking about how to represent complex structures in a SQLServer database. Consider an application that needs to store details about a series of objects that share some properties but have many other uncommon properties. For example, a business insurance package might include liability, motor, ...

P粉041856955 2023-08-29 13:56:14

How can I allow only one element to be selected in my click function? (Pure JS)

I'm creating a quiz app that pulls data from an API, builds a series of questions, and then loads a different number of "answer elements" on the quiz page each time, depending on which question is randomly selected from the array. Below is the creation Features a series of clickable "...

P粉345302753 2024-01-29 14:08:19

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

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

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