How to get the total length of an array in Vue.js

I'm trying to get the total result length but I'm not getting anything in the template

P粉908138620 2023-07-27 21:43:09 0  1  682

Get 2D array from API Post request in PHP

I can't get the 2D array of the APIpost request. Unable to formulate logic in php to get multiple arrays from JSON format API. The structure of the JSONAPI request is: "abc":[{"id":123,"days":[{"a":11,"b":11},{"a":22,"b":22} ]},{&...

P粉057869348 2023-09-08 10:38:02 0  1  750

How to get duration of video in php and javascript?

I want to get the duration of the video when the user uploads the video. I don't want to put the video tag into the html. I want to get video duration code in php and javascript or jquery. Thanks

P粉604669414 2024-01-29 14:23:20 0  1  433

Unable to get length value of array in Node Red JavaScript

I want to know the length of an array read inside a function in NodeRed using JavaScript, but it doesn't display/return any value. Can anyone help me? This is the code inside the function block in Node-Red letj=0;letarray1={payload:msg.payload};j=array1.length;returnj;I don't see any return value fo...

P粉216807924 2024-01-28 22:21:45 0  1  542

php - How to search and retrieve the desired data in an array

1. For example, I have a bunch of arrays as follows: {code...} 2. The search conditions are as follows: gid is equal to the following array {code...} 3. How do I get the data with gid=3, 4, and 5? Only one of the above data should meet the requirements, please help~

给我你的怀抱 2017-06-05 11:09:37 0  3  759

javascript - Declaring an array to add a value produces a value of type undefined

JS: Use objects to get successful values, use arrays, and there will be values ​​of type undefined {code...} The above can get the correct results. {Code...} The above code uses an array, and there will be a value with the default type undefined. Although I solved this problem by replacing the objec...

给我你的怀抱 2017-07-05 10:58:20 0  1  736

When inconsistencies are encountered when filling an array with JSON data, an empty array will be displayed in the console.

I'm trying to get some data using the AlphaVantage API and want to store all the dividends paid by a certain stock in an array. I'm just trying to save dividends now, but in the future I'd like to be able to associate dividends with specific dates. Function used to retrieve data: async function fetc...

P粉438918323 2023-08-03 11:50:47 0  1  514

javascript - get string in tag

As shown in the picture, it is an html string. Is there any way to get the content in the red box?

为情所困 2017-07-05 10:43:32 0  5  893

Split array of objects by JSON year using PHP

My question is how to get or split an array in ascending order using array key date, I tried a lot...but I didn't get it, [{"id":"47","date":"07/16/2022 ","text":"ph"}{"id":"46","date":"

P粉924915787 2024-02-03 22:31:37 0  2  403

java - Reflection array: Why are the Modifiers obtained every time public, abstract, and final?

The specific code is as follows. Why is it that every acquisition related to the array is public, abstract, final {code...} Why is this??

过去多啦不再A梦 2017-05-17 10:06:18 0  1  761

Get column names and data for CSV export (MYSQL) using PHP

I need a way to export a MYSQL database to CSV via PHP, but I also need to select the column names. So far I have the following, which does everything I need except getting the column names. echo"ExportStarting\n";$SQL=("SELECT*FROMINF_TimeEntriesWHEREExportedISNULL");$result=mys...

P粉579008412 2023-11-04 21:59:58 0  2  786

Use the primary key value of the data as the index of the associative array to obtain the data

Use the primary key value of the data as the index of the associative array to obtain the data

王林 2023-07-16 17:41:35 0  2  8110

How to get the id of all checked checkbox data from datatable in php jquery

I am using checkboxes in all rows so that when each checkbox is checked I get their Id, everything is working fine with what I have implemented but the problem is that I only get the specific ones that have been checked The page of the Id data table. Meaning if I check the checkbox for one data from...

P粉741223880 2023-08-28 13:21:03 0  2  521

javascript - How to get the height of the component itself in vue

Since we want to make a pop-up box with variable height, we need to position it. The pop-up box may pop up at the bottom or at the head, but since the content is variable, its height needs to be calculated to show whether it pops up or down. Currently, how do I get its height within a component? My ...

世界只因有你 2017-06-26 10:58:50 0  5  1311

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  1001

How to use function old() in Blade template to get the last element of array

How can I get the last element of the array 'g3' inside the old() function without knowing the number of elements. <selectname="g3[]"multiple="multiple"><optionvalue="1"@if(old('g3')=="1"){{'selected'}}@endif>lifting</op

P粉309989673 2023-09-02 22:00:20 0  2  587

PHP returns a two-dimensional array to ajax. How does ajax display the values ​​in this two-dimensional array on the page?

As shown in the title, PHP has successfully passed the two-dimensional array back to ajax. Using alert in ajax can successfully print out the two-dimensional array. However, when alerting a one-dimensional array, the pop-up window will prompt undefined. I want to display the specific values ​​in the...

LRTRL 2017-06-27 09:47:06 0  1  1409

Retrieve the highest value in a column and its date

I have written code in MySQL to get the highest death value for various countries and their reporting date in MySQL. I am able to get the highest death value but the date value returns an error. This is my MySQL code: SELECTd.country_name,s.dt,MAX(s.deaths)FROMDemographicsdinnerJOINstatisticssOnd.co...

P粉312195700 2024-04-02 15:26:37 0  1  613

Use React to get the selected value of a checkbox

I'm trying to retrieve the checked value of a checkbox and save it into an array. I tried: arr.push(setNewItem(checked)) arr.push(e.target.value.checked) arr.push(items.checked) but these return the wrong type or undefined value. const[checkedItems,setCheckedItems]=useState([]);consthandleChange=(e)...

P粉590929392 2023-09-02 22:36:49 0  2  660

Problem getting DOM height in $nextTick - Stack Overflow

To create a scrolling function, you need to get the height of the scrolled element. The code is as follows {code...} I found that the value obtained was not the actual height value. At first, I suspected that the data was not rendered, so I checked the DOM. The value of the attribute in it is found ...

phpcn_u1582 2017-05-19 10:09:37 0  1  586