Backend management system left and right menu toArray()

Why should the object from the left menu select() be converted into an array by toArray(), while the right menu is OK without converting it into an array. what is the reason? Is there any difference between the two?

Jack 2020-02-03 18:43:17 0  0  1043

javascript - A piece of code in the array primitive method

var t = Object([1,2,3]);var len = t.length >>> 0;What does this code mean? Why does an array need to be converted into an object? Does this mean it is converted into an array-like array?

ringa_lee 2017-05-16 13:25:11 0  2  429

I would like to ask if PHP can read the mssql record set directly and store it directly into an array? Thank you

It used to be asp, but now it is transferred to php. For example, $sql = "SELECT * FROM abcDB"; //Record 20 records. How to get a two-dimensional record set and store it in an array at one time. Reason: After the database operation is completed, I want to disconnect. The data is slowly cir...

stock2 2019-04-27 20:02:10 0  1  951

javascript - One is an array and the other is an object. How to compare and remove duplicates?

{Code...} How do you compare arr and obj? After finding that id2 is repeated, remove the array object id:2 of arr and generate a new array?

仅有的幸福 2017-07-05 10:53:25 0  4  841

After converting PHP array to object, how to access data using object?

{Code...} How to get the data in Array( {Code...} )? Ask for a way to write. For example, how to get all the data under [0]? What if we take [name] below [0]?

给我你的怀抱 2017-05-16 13:15:05 0  3  448

Regarding whether the hasOne object in Laravel ORM can target arrays

The target of using hasOne is db object (eloquent). Can the target object be an array? Or there is a package that can complete it. The following converts the data into json to illustrate. For example: { "id": 1, "name": "test", "size_id": 10, "size":...

PHP中文网 2017-05-16 16:56:17 0  2  789

php - Remove the outermost key of a multi-dimensional array and retain the value

It is this array. After using array_values, I found that it seems to have been reordered according to the ID impolde prompts that the array cannot be used as a parameter, the object is also used, and the json is also converted. How should I go about it? Update: This works, but after my new retlist 0...

phpcn_u1582 2017-06-23 09:11:13 0  3  2481

php - The most convenient or best way to convert objects to arrays

What is the convenient way to convert objects to arrays? Original data {code...} Target result {code...}

怪我咯 2017-06-05 11:08:09 0  2  484

How to receive and collect a passed object from another function in JavaScript?

I have a function, let's call it GetData(). I get the data from a query in another function and run an ajax call to populate the data. Once this operation is complete, I send the data to another function, let's call it PlaceData(). Each ajax call to GetData() puts the data in an object. I then send ...

P粉413704245 2023-09-15 13:12:20 0  1  629

How PHP interfaces actually change the behavior of classes

According to the PHP documentation, object interfaces allow you to create code that specifies which methods a class must implement without defining how those methods are implemented. So, the interface is like a class with predefined methods, which still need to be accessed using -> notation. Howe...

P粉289775043 2023-09-02 23:49:28 0  1  595

React Native implementation method of storing JSON values ​​as key-value pairs

I am displaying company name and ID from json stored in companyData and storing them as key and value simultaneously using async storage in ReactNative. I got the following error, so I used JSON.stringify to convert both values ​​to strings before storing them as key-value pairs, but I still get the...

P粉502608799 2023-09-14 22:48:30 0  2  567

"Array.prototype.fill() uses objects to pass references instead of creating new instances"

I'm playing around a bit and trying to instantiate a new array of length x where all elements of the array are initialized to the value y: vararr=newArray(x).fill(y); If the value of y is not an object then this method Can work very well. That is to say, if y is an object, then the following conditi...

P粉682987577 2023-08-23 09:15:17 0  2  437

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  312

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  738

javascript - How to use JS to convert between one-dimensional and nested arrays of json objects?

How to convert these two data formats into each other through JS? The same content is combined into a nested format in a flat format, and the nested format is disassembled into a flat format. I have been working on it for a long time and I can’t figure it out. Please help! {code...} {code...}

習慣沉默 2017-05-19 10:13:06 0  3  675

Laravel models sometimes convert Carbon objects and cannot use objects of type Carbon\Carbon as array errors

I'm doing some string manipulation to do time zone conversions from an old codebase. I need to put a T between date and time, I'm using the following logic to do this. $check_in=$model->checkin_date_time;//2022-12-1222:22:22$check_in[10]='T';//2022-12-12T22:22:22For some strange reason, I checked...

P粉125450549 2023-08-30 13:56:16 0  1  488

How to upload file array using formData

Because clicking input type='file' again will overwrite the previous fileList, I first convert the selected file into base64 as a preview image, similar to this. It can be added multiple times, but how do I add multiple preview images when uploading? Add it to the formdata object and accept paramete...

PHP中文网 2017-07-05 11:02:53 0  3  1630

Rewrite title as: Extract HTML and WordPress shortcodes as array of objects

I'm developing a headless WordPress website using Nuxt as the frontend. The website has thousands of articles with shortcodes. I get all the page data via graphql and render the content using v-html and everything is fine, but the shortcode apparently only renders as plain text. Most of them are ver...

P粉504920992 2023-09-08 11:18:41 0  1  479

How to split HTML input fields using multiple PHP variables, implemented through line breaks

So, I'm making a tool for those who want to copy/paste lines of text from Excel into a text box. The goal is to make each row a separate variable. If possible I would like to be able to count the number of rows and convert them into an array. Competitor Part Number: Test For example, the user might ...

P粉647449444 2023-08-16 13:06:13 0  1  588

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  711