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javascript - When using H5 drag and drop, why is the dragged element removed?

1. Please see the phenomenon: https://codepen.io/xuyu/proje... 2. The effect I want to achieve is to copy the dragged element to the specified area and do not want to delete the dragged element.

ringa_lee 2017-06-22 11:53:56 0  1  1118

Regular Expression - How to get the content of an HTML element in PHP

At present, I implement it through regular rules copied from the Internet, but it cannot achieve the effect I want. My current plan is: {code...} But the final output content is {code...} What I want is to output February 20, 2017, which is the content of the reason, but I don’t know the regular rul...

為情所困 2017-05-16 13:06:41 0  3  600

Add "<" after the element with class='btn' and replace the original content after the element is :hover:after

The output on ':hover' is always "1IPSUM" If I decide to add a ':before' element with the content 'content:"1"', it just adds a 1, making the output before hover as "11" "The output I want is: The output on 'hover' is "IPSUM" Fiddle: https://jsfiddle.net/...

P粉236743689 2023-09-09 12:32:51 0  2  852

Rewrite the title to: Vue 3: Transfer content to element and replace

I'm using Vue3's teleport to render an element into a div and it works as expected. Teleport will add the item to the selected element but will not replace the current element in the div. How can I set up the teleport to replace elements within the div, similar to how a vue app replaces the content ...

P粉237029457 2023-11-06 11:01:38 0  1  1108

javascript - The element-ui component selector of vuejs2.0 cannot display the selected content

1. The element-ui component selector of vuejs2.0 cannot display the selected content 2. `&lt;template&gt; &lt;el-select v-model="value4" clearable placeholder="Please select"&gt; {code.. .} &lt;/el-select&gt;&

我想大聲告訴你 2017-05-19 10:19:14 0  5  1372

java - Implement a button on both sides. Click the button to switch the content in the middle. The middle can be a fragment. How to achieve this effect?

Implement a button on both sides. Click the button to switch the content in the middle. The middle can be a fragment. How to achieve this effect? ??I have tried viewpager, but it is not easy to use in the project. I am looking for other solutions.

習(xí)慣沉默 2017-05-16 13:33:43 0  2  940

Accessing drag-and-drop elements in HTML: a comprehensive guide

The 'dragenter' event is fired when a dragged element enters a drag-and-drop element. This event is attached to the drop element so I can access it. Where is the dragged element?

P粉316890884 2023-08-01 10:13:18 0  1  694

javascript - Why can't jqeury's ID selector with string concatenation be used?

{Code...} In this code, checkeds is an array of ids. The third line is to find elements with the .text-status style in the sibling elements of the parent of the id element and remove the text-green style. But it cannot take effect. The following is the content of the searched parent element td repor...

phpcn_u1582 2017-06-30 09:59:52 0  6  1050

javascript - drag image into canvas

Can any expert help me to see this effect? ??You can drag the picture on the right into the canvas and edit it. How is it achieved? Can you explain it in detail? Urgent.

phpcn_u1582 2017-06-14 10:52:41 0  2  1000

javascript - css3 flex centering problem

I can center the element by setting justify-content:center, but after adding position: fixed;, why can't the element be centered? Doesn’t the flex layout take effect after using fixed? {code...}

阿神 2017-06-12 09:20:46 0  1  656

Show content on hover (does not affect card height)

I have a block that contains content that displays on hover. The way the effect should work is: .hoverCard defaults to showing the underlying content (content in .hoverCard__showOnHover is hidden) The user hovers over .hoverCard, at which point .hoverCard__showOnHover shows its content, and .hoverCa...

P粉289775043 2024-03-27 20:29:28 0  1  609

jquery hide() method not working

If you use $(this).hide(); in a click event, the element will not be hidden. Then add a parameter speed to hide(), and hide(1) can hide it. Why is this? There is a saying in w3school " If the element is already fully visible, this effect has no effect unless a callback is specified...

巴扎黑 2017-06-17 09:16:52 0  1  1067

angular.js - angular content is too long, expand and collapse effect

1. The content in the div is too long. When the content is too long and exceeds the display of two lines, a [Display] tag will appear. After expansion, a [Collapse] tag will appear at the end of the content, similar to the talk published in QQ Space. Long In order to display the full text and close ...

僅有的幸福 2017-05-15 17:02:00 0  3  825

python matching data output data

I now have a list with the content re=['test1','test2','test3'], and a csv or xlsx or txt with two columns of data. The effect I want to achieve is if the element of re It is equal to column A in the file. This outputs the row of data in column AB of the file. How should this be done specifically...

扔個(gè)三星炸死你 2017-06-12 09:24:22 0  2  913

html - form user name prompt and error prompt are displayed separately?

Click the input box to display the user name prompt. Click the Register Now button to display the error prompt {code...} under the input box. The specific effect is as follows. Now I am entering content and do not want the error prompt to be displayed. My current problem is to enter the correspondin...

PHP中文網(wǎng) 2017-05-15 17:03:55 0  1  766

Custom drop-down arrow

Is it possible to change the select tag's dropdown arrow to a custom arrow consisting of 4 elements. I want it to look like this: 3 horizontal lines on the left and a downward arrow on the right I successfully achieved this effect with one element (a horizontal line).select-wrapper::before{content:&...

P粉986937457 2023-08-17 17:52:04 0  1  640

javascript - Why does my router-link in vue not work?

{code...} {code...} This is the content of App.vue. In fact, the page display has been mounted as a tag, but clicking has no effect, and there is no effect of clicking to change the component {code. ..} This is the code for one of the routers. The other two are basically the same. How can I get the ...

漂亮男人 2017-05-16 13:38:06 0  2  798

Using Psuedo element's CSS hover effect to overlap the main element

Basically, when I hover, I want the effect to look like this: My website code here is as follows ignore! Important: .cta-button-menu,.cta-button-menu::before{transition:all0.3slinear!important;width:120px!important;height:50px!important;display:inline-flex!important;justify-cont

P粉838563523 2024-03-20 10:31:28 0  1  465

jquery - How to embed JQ code in angular?

I encountered a control problem in the project. I used the panel drag effect written in JQ before. I want to transplant it to the angular code and I don’t know how to deal with it. Please let me know. JQ code {code...} angular {code...}

黃舟 2017-06-30 10:00:14 0  2  1094

angular.js - How to communicate between angular2 attribute components and control components

1. Drag an existing control from the control library to generate an element and display some attributes of the element. As shown below, how can the rightmost attribute component be changed, and the corresponding attributes of the middle element be changed at the same time? For example: I click on th...

世界只因有你 2017-05-15 17:09:54 0  1  720