PHP calculates the maximum and minimum values ​​​​of an array Dashenjin

How to calculate the maximum value and minimum value of such an array? It can be seen at a glance that the minimum value is 0 and the maximum value is 459. But how to calculate it using PHP?

怪我咯 2017-05-18 10:46:03 0  6  872

Update the calculated properties of a parent component after the child component modifies the prop data

I need to make a relatively complex API request object with a large number of UI components responsible for updating different properties of the object. I pass the basic request model as a prop from the parent component to its child components, and the child components pass it to their components (a...

P粉633733146 2024-02-26 11:56:21 0  1  373

java - What website can I use to learn about the release and sharing of Alibaba's backend, big data, and cloud computing technologies?

What website can I use to learn about the release and sharing of Alibaba’s backend, big data, and cloud computing technologies?

PHPz 2017-05-27 17:40:14 0  1  1011

Embedding query operations in MySQL IF statements

Is there a way to run insert query in IF statement, I know the syntax of if statement is IF (condition, statement to be executed if condition is true, statement to be executed if condition is false) My question is if it is possible to run insert statement based on condition, For example IF((select c...

P粉155832941 2024-02-17 16:44:15 0  1  531

Insert file size into database

I'm uploading a file and the size remains 0 in the database $djenjang_capaian=$this->session->userdata('djenjang_capaian');$pengirim=$this->session->userdata('pengirim');$path= FCPATH."/upload/document/capaian/$pengirim&quo

P粉986860950 2023-09-13 12:14:32 0  1  750

How to use for language

(1) Generate a file with 1000 lines, each line is the number of lines in the line; (2) Count the number of all characters in the file; (3) Count all 0 1 2 3 4 5 6 in the file The ten numbers 7 8 9 appear several times in total.

饮浮觞 zyq 2019-10-09 22:53:17 0  2  1497

Is there a way to automatically update the offset in the query when tijdtot is negative

I have a question. I have a query that calculates how many days until the next Grand Prix event in a list. Then I use the offset, if the event goes to 0 days or negative, I actually want to automatically go to the next positive number. I calculate Timeto between datetime and curdate in a table. SELE...

P粉023326773 2023-09-12 22:58:55 0  1  658

ios - Is there a more precise type than double in Swift? Why does the double type not display scientific notation if the value is too large?

If the double type value is too large, scientific notation will be used to display, for example, 5.6846032206862e+19. Multiplying tens digits by tens digits using the double type will result in inaccurate calculations. How to solve this problem. .

大家讲道理 2017-06-06 09:53:56 0  1  1429

nginx - How is CDN traffic generally calculated?

Downloads multiplied by file size? How do CDN service providers such as Alibaba Cloud calculate traffic. We need to check the download volume we count with the CDN traffic. I don’t know how this traffic is calculated.

黄舟 2017-05-16 17:08:57 0  1  630

javascript - bootstrap-table pagination issue - Stack Overflow

Is this plug-in done by the frontend for paging? Did you search all database data during initialization? The server is under great pressure, how to solve it?

过去多啦不再A梦 2017-05-19 10:46:52 0  1  684

PHP's latest plug-in backend management system is really easy to use. I recommend it~

OneKeyAdmin is a background management system written based on Thinkphp6+Element. The installation package is 7MB in size and has the function of one-click code generation, quick addition, deletion and modification without writing pages, resource management, permission management, universal membersh...

MUKE 2022-06-13 14:18:25 0  2  1705

linux - How to understand mutex locks and condition variables?

The following code is from "Unix/Linux Programming Practice Tutorial". Its function is to use two threads to count the number of words in two files respectively, and calculate the total number in the main thread. The following is a running screenshot: But after watching it for a long time,...

仅有的幸福 2017-06-12 09:24:46 0  1  1258

php - How to split large batches of data?

Hello everyone, there are 10,000 orders in the database, and various calculations need to be performed on the orders every day. The language used is php+mysql. Because so much order data was not considered in the previous design, I used a very conventional method of writing and updating all the data...

女神的闺蜜爱上我 2017-06-24 09:41:39 0  2  1027

javascript - An algorithm question in front-end interview

Today, I have an interview in the afternoon. During the second interview, there was an algorithm question. I know nothing about algorithms. Please ask someone to help me. The question is to implement a function that calculates addition, subtraction, multiplication and division of parentheses. The in...

给我你的怀抱 2017-05-19 10:27:19 0  11  1547

Unable to connect to MySQL server on 'localhost:3306' (99) - using docker-compose

I'm trying to connect to a MySQL database on my local machine using docker-compose, I wrote the following code in the docker-compose file: db-my-sql:image:mysql:latestcontainer_name:mysql_dbrestart:alwaysenvironment:MYSQL_DATABASE:"xyz"MYSQL_ROOT_PASSWORD:" ro

P粉432906880 2023-12-22 23:59:06 0  1  580

php - What to do about duplicate naming of routes in restful form?

For example, this route GET /users/{id}/comments now says that there is a message board on the user's page. It plans to use a comment component to post replies from users in some posts. This comment component is also used when designing the database. The comment component uses the same data table...

黄舟 2017-06-20 10:07:20 0  3  917

Vuex Getter Hook with parameters

I defined a vuexgetter function with parameters, the code is as follows: constgetters={getProjectById:(state)=>(id)=>{returnstate.projects.find(project=>project.id===id)}} Now , I want to use this getter function in my component, but I can't find a way to pass parameters to the getter. This...

P粉530519234 2023-08-29 18:45:19 0  1  600

javascript - How to set the default time when using the mobiscroll plug-in

I want to change the default time to 1990-01-01. Using the defaultValue parameter does not work. Can anyone help? Thank you. You can also recommend other plug-ins. Thank you.

習慣沉默 2017-05-19 10:37:44 0  2  763

The title is rewritten as: CSS variables for adding inline styles in Vue

I use css variables in the component and set the width of the div based on the data calculated in setup() setup(props){constprogressBar=PositionService.getProgressBar(props.position);constprogressWidth=`${progressBar}%`;... return{...,progressWidth};} Then I use this variable as a css variable. &...

P粉421119778 2023-12-31 12:51:41 0  1  542

The insert statement is case-sensitive, but it is not case-sensitive when used as a condition. Is this considered a bug?

$count=Db::table('userinfo')    ->insert([        'UserName'=>'郭襄',        'Email'=>'guoxiang@163.com&#39

鱼 2020-02-18 21:17:21 0  0  1091