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javascript - How vue dynamically adds instructions to tags (using js to add instructions to tags)

Now that there is an html tag, you need to use js to add instructions to the tag. Just like: html: <img /> and then use js to make the html become <img v-lazy='fn'/>

淡淡烟草味 2017-05-19 10:25:15

Is it acceptable to use PHP short tags?

According to the official documentation, there are four different pairs of open and close tags available in PHP. Two of these pairs (<?php ?> and <?= ?>) are always available. The other two pairs are short tags (<? ?>) and ASP style tags (<% %>), which can be turned on and of...

P粉882357979 2023-07-31 17:44:33

javascript - Excuse me, if an article has multiple tags and there are multiple articles under one tag, how can I design a table using mogoose?

The usage scenario is as follows: When publishing an article, it is tagged. The article has many tags. Then when querying a tag, how to query all the articles with this tag? ? Then what is the overall data design idea of mongoodb? Please give me some answers, thx

给我你的怀抱 2017-06-30 09:52:50

What is the effect of replacing it with the load tag?

What is the effect of replacing it with the load tag?

自渡 2018-07-25 14:06:09

javascript - How to tell if the user has switched to the current tab?

I noticed that YouTube only starts playing videos when the user switches to the current tab. So when a user opens multiple tabs, how to determine whether the user has switched to the current tab?

三叔 2017-07-05 10:38:13

Is there a way to have the CSS transparency style apply only to the label's innerText and not to any child elements?

In the example below I have a lot of tags where the tags contain inputs. Is there a way to make CSS's opacity style apply to the label's innerText rather than any child elements without explicitly specifying a color? In the example below, opacity has been applied to the dropdown menu, not just the l...

P粉794851975 2023-08-17 20:51:57

After a label sets display to block, its internal content cannot expand the width of a label.

Hello everyone, I am currently learning HTML by myself, and I encountered a problem when writing a page. After setting the display of the a tag to block, the content in the a tag cannot expand the width of the a tag. I checked the code, I don’t know where the problem is. I would like to ask some exp...

风 2021-04-26 16:16:38

Using tags to force direct layout in VEGA

I'm trying to create a network diagram in VEGA using a force-directed layout that displays labels for each node. A possible approach is mentioned in this question. By referring to the Vega editor, we can observe that the labels are present, but there are some overlapping and visual clutter issues. S...

P粉882357979 2024-02-26 18:46:59

javascript - Use canvas to implement electronic signature, position the coordinates of the mouse in the canvas

When trying to use canvas to implement an electronic signature, the coordinates of the mouse in the canvas cannot be accurately obtained. {Code...} Use ev.clientY to obtain the coordinates of the mouse, but canvas.offsetTop obtains the height from the parent element. And canvas is in a form with scr...

巴扎黑 2017-05-16 13:36:00

javascript - Error switching between mouse events and keyboard events when utilizing button tags?

I made a small lottery thing, and the start and stop buttons are button labels. When I press start with the mouse and enter the number of people, it is OK to press Enter to pause, but if I press Enter again, it will start and then stop instantly, instead of pressing Enter again to end. If the button...

習慣沉默 2017-05-18 10:54:36

angular.js - a tag in angular not working

Code in angular: {code...} A record in angular has an a tag nested in the middle. I want the URL address to jump when clicked, but it doesn't work. What should I do?

ringa_lee 2017-05-16 13:20:09

javascript - How to use native JS listening to event bind more loaded tags

There are projects that use JS templates, but the tags in the template are html tags whose strings are not functioning properly. After event binding is performed on the tags loaded at the beginning of the page, the tags loaded later will not be loaded unless jQuery is used. I think I don't know what...

天蓬老师 2017-06-26 10:56:02

Does HTML5 allow non-empty self-closing tags?

The W3C validator (Wikipedia) does not like the use of self-closing tags (tags ending in "/>") on non-empty elements. (Empty elements are those that never contain any content.) Are they still valid in HTML5? Some examples of accepted empty elements:<br/><imgsrc=...

P粉680487967 2023-08-21 18:20:11

How to change the text color of V-select labels and items

I've been trying to change the text color of v-select labels and items but can't find the corresponding properties to do so, I can change the background color but not the labels or text items inside v-select. Here is sample code: <divid="app"><v-appid="inspire"><v-...

P粉662361740 2023-08-25 15:05:15

Why can I use both the start attribute and the reversed attribute in the OL tag?

Why can I use both the start attribute and the reversed attribute in the OL tag?

自渡 2018-07-04 14:25:24

html5 - Can the playback speed be adjusted when playing a video with the video tag?

For example, I want the video to play slower. Can I adjust the playback speed by using the video tag to play the video?

给我你的怀抱 2017-05-31 10:40:51

What is the purpose of a reference inside a div tag without attributes?

I want to start using attribute selectors in my css. I see div tags containing references but without any attribute statements, for example: <divclass="container"data-footer> All my searches (for the past hour) have turned up no information on how to do this without using attribute=(...

P粉197639753 2024-03-20 11:26:40

Is there a way to capture audio and video from the HTML video tag in Safari?

In chrome and firefox, we can use HTMLMediaElement.captureMediaStream() to capture the stream. But Safari does not support HTMLMediaElement.captureMediaStream(). The source of the video tag is the HLS data received in segments. Is there any other way to capture media data as a MediaStream in Safari?

P粉904450959 2024-03-31 12:27:03

javascript - The canvas tag created by jade/pug returns null using getContext('2d')

The project uses pug and needs to generate a canvas tag, so I added the following code {code...} However, after using js to obtain the object, calling getContext('2d') returns null and the object is printed out as <canvas class ="work-item_background_canvas">Please tell me...

为情所困 2017-05-19 10:40:25

laravel - How to parse variables in a tag when using vuejs?

When using vuejs, how to parse variables in a tag? For example, the following one: {Code...} Press F12 to see this in the browser debugging window, but it cannot be parsed: {Code...} How should I write it?

过去多啦不再A梦 2017-05-16 16:46:42