What are the performance numbers next to components in the Vue dev tools?

Does anyone have insights or resources for a certain feature in the Vue development tools? On the components pane, it shows my component, and then these little red and yellow squares, and what I'm assuming is the performance of the component. When I first load the app they don't appear, but for exam...

P粉420868294 2023-11-09 14:46:48 0  1  305

Problem filtering data from a dataset based on user input

Here's an overview of what I've tried so far: I have a searchInput element where the user can enter their search query. I use a function to handle the filtering process when the value of searchInput changes. The filter function loops through the dataset and compares each item to the value of searchI...

P粉903969231 2023-09-20 09:37:52 0  1  346

Why doesn't the map method show my div content?

I'm currently trying to create a web application using React that prompts the user to enter some content using a form. On submission, the code creates an object "teammate" and then pushes it to the array "Team". I then want to use the map method to loop through my array and displ...

P粉600402085 2023-09-16 20:00:13 0  1  268

Add different classes to dynamically created elements

I have an array of objects where each object has a textValue, an active, info etc. I will loop through this arrangement and display the buttons for each element. For each button inside I add a div and within the 3 paragraphs I try to add classes and conditionally show some paragraphs to each button....

P粉573809727 2023-09-11 13:34:46 0  1  246

Check if there is an element in the array that is twice N equal to M

I started to solve the problem on leetcode, this problem did not pass the test case, this is my attempt: functioncheckIfExist($arr){$i=0;$j=0;$n=count($arr);//Loop through Array for($i;$i<$n;$i++){for($j;$j<$n;$j++){//Check whether elements i and j are different and N*2=Mif($i !=$j&&$a...

P粉663883862 2023-09-11 13:15:10 0  2  227

Vue.js FullCalendar v5 component - events are not displayed properly

Recently we upgraded the FullCalendar component from version 4.4.2 to version 5.9.0 in the Vue.js project. However, we ran into an issue where the events were not showing up. Since I couldn't find the reason in the original file, I decided to start building the calendar in a completely new file, bui...

P粉536909186 2023-08-28 10:28:13 0  1  186

Why are object properties marked read-only in my JavaScript (Vue) code?

I have a Vue2 application that has a state variable (an array containing box objects) called boxes. I have a computed property that extracts a subset of these boxes (nearest_box_linked_boxes). I have a method that iterates through the boxes returned by nearest_box_linked_boxes and changes the value ...

P粉464208937 2023-08-26 22:18:27 0  1  295

Traverse the alphabet from a to z using C#

I have a question about traversing the alphabet. I want a loop that starts at "a" and ends at "z". Then, the loop starts from "aa" and counts up to "az". Then start with "ba" and go to "bz" and so on... Does anyone know a solution? Thanks E...

P粉982881583 2023-08-23 09:51:55 0  2  203

Use webpack to load all files in a directory without requiring a require statement

I have a large number of javascript files scattered across 4 subdirectories of my application. In grunt I collect them all and compile them into one file. There is no module.exports function for these files. I want to split them into 4 parts using webpack. I don't want to reference all the files man...

P粉252423906 2023-08-22 14:25:18 0  2  161

Use async/await and forEach loops to operate

Are there any problems with using async/await in a forEach loop? I'm trying to loop through an array of files and use await on the contents of each file. importfsfrom'fs-promise'asyncfunctionprintFiles(){constfiles=awaitgetFilePaths()//Assume this function works normally files.forEach(async(file)=&a...

P粉010967136 2023-08-20 11:27:20 0  2  265

How to execute Promise repeatedly in async function?

I'm learning promises and asyncawait, here I want to call the addPost function and push an object twice, then I want to loop through the object array to see the results, but in this code the results are not as expected. Here, when the code executes to the showDetails() function, it only shows 3 obje...

P粉356128676 2023-08-18 14:54:42 0  2  173

JavaScript - Remove duplicates from an array and return an array containing the duplicates and another array containing all other items

I want to run a filter or reduce operation on an array and remove all duplicates in the array based on the 'name' attribute like in this example. The examples I've seen are iterating through the array and keeping one of the duplicates, but in my case I need to separate them and return the duplicates...

P粉986937457 2023-08-17 22:28:55 0  1  245

How to loop through the page and insert data using Laravel

I want to perform an insert into the database on each paginated page, starting from the first page and ending with the last page, until the last page is completed. But the problem is, I tried this code, but it only loops through 5 pieces of data (based on the first pagination) and keeps going. Thank...

P粉282627613 2023-08-15 21:39:21 0  1  245

Traverse nested structures of JavaScript objects and arrays using string paths

I have a data structure like this: varsomeObject={'part1':{'name':'Part1','size':'20','qty':'50'},'part2':{'name' :'Part2','size':'15','qty':'60'},'part3':[{'name':'Part3A','size':'10','qty':'20 '},{'name':'Part3B','size':'5

P粉897881626 2023-08-15 21:01:19 0  2  192

Merge arrays created using Google Drive NextPageToken into one array

I have the following code for downloading files from GoogleDrive, the number of files is determined by nextPageToken as shown below. The code will continue adding arrays to the $files array until nextPageToken is null. At this point I have an unknown number of sub-arrays that I would like to merge i...

P粉872101673 2023-08-13 20:28:17 0  1  246

Loop through each value in the array and then use a switch statement on those values.

I'm new to PHP and I was wondering if anyone could help me. I have an array, the values ​​in the array are determined by another function, but the value of the array is always "warning", "critical" or "ok", the length of the array can also be arbitrary. For example: $ho...

P粉513316221 2023-07-30 12:21:44 0  1  342

jQuery traversing table error

I use jQuery to traverse table data, why can I only retrieve the first row of data? As shown in the figure, if there are three rows of data in the table, only the first row of data will be repeated three times. Code: Please help me, masters, thank you! $("#btn_show").click(function () { v...

P粉154884468 2023-03-29 18:20:32 0  0  331

authority management

Teacher, the array in the children loop cannot be looped out. The error is that the array is undefined. I have followed the teacher’s code and typed it several times. Please give me an answer. Thank you, teacher.

P粉944793232 2022-09-21 12:47:57 0  3  523

Pear Admin Think ​How the menu traverses data

可遇不可求 2022-08-15 19:08:39 0  1  476

Ask about traversal of one-dimensional and two-dimensional arrays

Ask about the traversal problem of one-dimensional and two-dimensional arrayArray( [8900] => A [8898] => D [8733] => B [8799] => C [8933] => A [8827] => C &n

笑看落花 2021-04-24 16:42:42 0  2  653