HTML assign variable to element name

Is there a way to assign a variable to the element name so that I can access the element and change the value: [%FOREACHfieldIN['id','type','updatedt','lastcheckdt']%]<divclass="rowcol-md- 3col-sm-6"><dlclass="details-dl"><label>[%field%]</

P粉148782096 2023-09-09 20:57:07 0  2  481

How to get the global variable of an element to avoid being polluted?

var ele=document.getElementById('btn'); When writing native js, you need to obtain a large number of page elements. Now that there are too many global variables, how do you avoid being polluted?

曾经蜡笔没有小新 2017-05-19 10:11:18 0  4  599

Adding Vue directives to elements programmatically: a step-by-step guide to v-if

We can programmatically add custom attributes to elements using pure JS, like element.attr('data-attr',someValue), but what about Vue directives like v-if Given the following element <pv-html= "data.title"></p>How to add v-if programatically? I'm asking this for automation purp...

P粉883973481 2023-09-07 13:54:54 0  1  621

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  568

Can we leave the first element blank when declaring a constant using useState?

Can we write const[,setOpenCollapse]=React.useState(false);? If I leave the first element blank when declaring a constant using useState in React, is this valid syntax?

P粉052724364 2023-09-14 13:59:15 0  1  401

How to right align grid elements

I have a fixed number of columns in a CSSGrid layout and have elements to be placed in these columns. The number of elements to be placed is less than the number of columns. I want the columns to be aligned to the right, in the order the elements were added. In the following code, there are 4 elemen...

P粉296080076 2023-08-13 11:27:01 0  1  608

Why does every time I save my Vite React project, a new canvas element is added to the page body instead of replacing the existing canvas element?

I'm trying to start learning ThreeJs (I'm also new to Javascript web development). After watching some tutorials, I started with Vite and React, then started with a basic rotating cube. This part works. But from what I've read about vite, saving the file I'm working on should be enough to reload it ...

P粉186904731 2024-03-30 09:57:49 0  1  521

json added to MySQL

How to add new element to json variable in mySQL from this: value=['123'] do this: value=['123','456']

P粉939473759 2024-04-04 19:17:30 0  1  491

php - [WeChat] Get the material list interface, get all when getting the picture and text list? ?

WeChat’s interface for obtaining a permanent material list, the parameters are written as follows: The document states: The number of returned materials is between 1-20. I get the picture material list, no problem, I can control the returned quantity through the count parameter. But when getting the...

过去多啦不再A梦 2017-05-24 11:34:22 0  1  1055

list statement problem

Does the list statement essentially convert the values ​​of array elements into variables? If it is an element as you said, shouldn't it be in the form [0]=>1?

Adrian 2018-10-17 18:38:01 0  1  1157

Angular: Display data by rows (3 rows only)

I'm new to programming. I want to try using angular to display elements by rows, with a limit of 3 elements per row. (Using *ngFor) For example, like this image with 3 elements in a row I use the slicing pipeline, but this only requires the 3rd element. <ul><li*ngFor="letitemofitems|sl...

P粉322918729 2024-02-17 12:00:46 0  1  379

css3 - How to align child elements under flex layout?

As shown in the picture, I use justify-content:space-around;, but I hope that the second row of sub-elements can be aligned up and down with the first row. The number of sub-elements is not fixed. How to solve it?

淡淡烟草味 2017-07-04 13:45:08 0  4  1761

javascript - Add dynamic elements to page

Let me ask a question: Why can the p element be inserted only once and then cannot be inserted again? Modification: Let me post the code. This is html {code...} This is js {code...} I can only update the comment once, and then it stops. I don’t know why? Thanks: I didn’t know innerHTML was so magica...

phpcn_u1582 2017-05-19 10:14:20 0  5  480

How to set the width of a sublist of flex:auto elements

Hello, I have a CSS problem. There are two columns, the right (B) column has a fixed width of 100px and the left (A) column must fill the remaining width. Additionally, within column A, there is a list of subcomponents added horizontally. The problem is that when adding child components, the width o...

P粉676588738 2023-09-09 18:09:18 0  2  586

javascript - Is there any simpler way to distribute the elements of a collection equally to another array object?

Array A=["G","D","B","H"], the number of elements is variable, and the element content can be any character set B=[{"id":"a",item:""} ,{"id":"a=b",item:""}], variable quantity, fixed structure

phpcn_u1582 2017-05-17 10:09:17 0  2  655

html5 - Pseudo-element added but cannot be seen when viewing the element

{Code...} I want to set the animation in two directions in this way. When superimposed, the effect of a curve will appear. However, the pseudo element added now cannot be seen when viewing the element. May I ask why? What is wrong?

为情所困 2017-07-04 13:45:09 0  2  2020