javascript - How to get all attribute names of an img tag node using js?

{Code...} Assume that there are many img tags with a structure similar to the above, but the number of attributes of each img tag is unknown (that is, some may only have one src attribute). How to obtain the attribute of each img tag? All attribute names (not attribute values)?

过去多啦不再A梦 2017-06-12 09:31:49 0  4  1470

Function is called multiple times when using useEffect passed to child React component

I have a page with multiple ChildComponent tags and I want each ChildComponent to be told which API to call based on which ChildComponent the user clicked. onClick() will open a modal. I noticed that when the modal is open, the API call is made twice. When I close the modal, the API call will be mad...

P粉818561682 2024-03-30 15:36:26 0  2  486

Why are my checkboxes still stuck and unable to return to their default values?

I just created this function to change the page title after clicking the toggle button, but for some reason it gets stuck after clicking. I'm not sure what's wrong with this function, I wrote it in Jquery but it does the same thing even when coded in pure JavaScript. This is functiontoggleButton(){c...

P粉288069045 2024-04-04 00:14:23 0  1  515

Design multifunctional product tables with multiple parameters for various product types

I don't have much experience in table design. My goal is to create one or more product tables that meet the following requirements: Support multiple products (TV, mobile, PC...). Each product has a different set of parameters, for example: a mobile phone will have color, size, weight, operating syst...

P粉658954914 2023-10-18 17:44:13 0  2  885

cypress - How to get selection element by selected value?

I'm trying to use Cypress in a Vue project. I have a page that has a table with many rows. Each row has a selection label. This selection label has different options and the current status of each row, such as: "Processing", "Awaiting review", etc. By changing this, there are som...

P粉034571623 2023-09-01 14:36:33 0  1  562

javascript - jquery uploads multiple pictures and takes pictures for display

Recently, I encountered a function that I couldn't solve while writing code. As shown in the picture above, when I click on the camera icon, I can upload multiple pictures and take photos. My current idea is to put an input type=file on the camera icon. Tag, just hide it, so you can upload pictures ...

黄舟 2017-06-27 09:19:43 0  2  1277

javascript - There are too many table columns. Is there any plug-in that can provide column sorting and selection of columns to display?

The table has too many columns. Is there any plug-in that can provide the function of sorting columns and selecting columns to display? For example, check the columns that need to be displayed. I have seen this function when working on jquery mobile, but the plug-in on the web side cannot be found. ...

PHP中文网 2017-06-26 10:55:14 0  2  932

javascript - Why does the error reported at the end of the js code cause the previous code to fail to execute? I am sure that the latter part is not logically related to the previous part.

Recently I am using the Wild Dog Cloud real-time communication engine to build a todo application. Roughly speaking, there is a function in the front that monitors changes in cloud data and synchronizes the cloud data to the local. So every time you refresh the browser, the data on the page will be ...

迷茫 2017-06-26 10:53:57 0  2  985

PHP <form method="post"> on multiple carousel slides

Excuse: I'm making a homepage with a carousel. Carousels work great. However, each slide has its own input form. If I try to combine the two forms within a single tag, the page reloads to its original content whenever I change the slide. I believe this is due to the label saving all the inputs toget...

P粉043432210 2023-09-15 14:13:53 0  1  568

PHP—Implementation of questionnaire survey function based on Yii2 framework

The questionnaire based on the Yii2 framework has three types of questions: single-choice, multiple-choice, and text input. How can these three functions be implemented using PHP language? I'm urgently looking for the answer, thank you!

紫颦晨曦 2019-08-22 17:41:19 0  1  1350

jquery - In addition to firebug, what other useful javascript debugging tools are available in firefox?

The one I personally use most is firebug, which has good functions but also has shortcomings. For example, it is inconvenient to debug without break points, and break points cannot be automatically followed by events. This is very inconvenient for analyzing other people's code, and the execution poi...

女神的闺蜜爱上我 2017-06-15 09:22:33 0  3  992

laravel - How to write this in php?

Image description: I saw a lot of code in Laravel with the view:'welcome' style. I thought it was PHP's new syntax, but when I copied it, it disappeared. Is it a function of phpstorm?

習慣沉默 2017-05-27 17:43:34 0  1  479

JavaScript Trick: How to efficiently detect touch screen devices?

I wrote a jQuery plugin that works on desktop and mobile devices. I'm wondering if there is a way to detect if a device has touchscreen capabilities using JavaScript. I'm using jquery-mobile.js to detect touch screen events and it works on iOS, Android, etc., but I also want to write a conditional s...

P粉877719694 2023-08-20 15:26:32 0  2  669

How to add a course to latest posts on WordPress home page?

I'm using the following function in WordPress to display the latest three posts on the home page. Is it possible to add class="latest-posts-right" to the last div so that I can give it another style? How can I do this? <?php/*Showlatestpostsonhomepage*/functionlatest_post(){$args=array(...

P粉073857911 2024-03-21 23:09:34 0  1  372

How to use original JAVASCRIPT to only display part of the five LIs and display the rest when clicked?

The code is as follows: {Code...} The above is the HTML structure. How to use JAVASCRIPT (not JQUERY) to only display 5 links and hide the rest. You need to click on the picture or text to display it, and then click to hide it. How can I achieve this function? Currently displayed: I am link 1 I am l...

世界只因有你 2017-05-19 10:18:35 0  5  478

标题重写：Bug in my quiz causes infinite score increase when correct answer is pressed multiple times

So, I'm creating a CSS animation for my degree, and I have the quiz set up so that it loops through questions with specific answers, the quiz is fully functional, etc... However, I noticed that when correct The score will increase when an answer is pressed for the first time, even if the answer has ...

P粉312195700 2024-02-21 19:36:54 0  2  461

python - dateutil.parser handles incomplete time strings

The parse function is powerful and convenient, and it is easy to handle time analysis in various string forms. However, when encountering an incomplete time format, such as '8-9 12:00', it can also be automatically parsed into 2017-8-9 12: 00, the default current year is used to complete the missing...

过去多啦不再A梦 2017-06-12 09:27:04 0  2  838

javascript - Is it good to use object literals to organize code?

{code...} Or {code...} Which of these two is better? The object method looks very clear, but there are many disadvantages in using it. For example, you have to put this in front of methods and variables. Will this increase unnecessary performance consumption? Will writing it as an object facilitate ...

伊谢尔伦 2017-06-12 09:28:53 0  3  657