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javascript - canvas crop empty area

I used canvas to make an electronic signature, but there was too much space left after the user signed. Is there any way to capture the blank space? Original picture of the example: During the signing process, I obtained the area that the mouse passed through, and thus obtained the coordinates of th...

黄舟 2017-05-16 13:26:16

Streamlit tutorial: How to dynamically adjust the height of the text area?

In my scenario I have two st.columns with two textareas. One for user input and another for generated text. Is it possible to make the text area expand with each line and get rid of the scroll bars in the text area? While testing, I can only use scrollbars, and I know you can use st.markdown to inse...

P粉007288593 2023-09-04 17:34:31

Automatically expand text area

I'm trying to make a simple auto-expanding text area. This is my code: textarea.onkeyup=function(){textarea.style.height=textarea.clientHeight+'px';} But the textarea grows infinitely as you type... I know there are Dojo and jQuery plugins It is possible to achieve this, but I don't want to use them...

P粉245489391 2023-10-21 08:49:23

How to access php local project LAN?

The local project domain name can be accessed normally, but the local ip domain name has been added to other hosts in the LAN, but it cannot be accessed normally.

喵帕斯先生 2018-04-28 11:19:15

How to upload large files within LAN with PHP?

There is an LNMP server in the LAN. How to use PHP to upload large files to the server from other machines in the LAN? (5GB±)

过去多啦不再A梦 2017-06-10 09:47:37

javascript - axios CORS cross-domain POST, real machine test failed

The backend allows cross-domain WeChat simulator real machine testing

黄舟 2017-05-17 10:06:48

Java - Principle of automatically detecting devices in LAN

There is a device with a network interface. After it is plugged into the router of the LAN, if the default configured IP and gateway of the device are not in the same network segment as the current network, the device can be scanned and discovered through the tools provided by the manufacturer, and ...

PHPz 2017-05-17 10:01:07

PHP regional proxy query, how to accurate to the region

Excuse me, Tianjin in the red circle, how to accurately specify Tianjin, Tianjin, Nankai, Tianjin, Tianjin, and Hexi? Such a choice, or 3 drop-down boxes, Nankai, Hexi under Tianjin, but only display some areas under the region, how to implement the front-end interface HTML code<div class="s...

九号球 2020-07-27 14:15:25

asp.net - Are areas abandoned in MVC6? It was still replaced!

Unable to create a new area in the MVC6 project

为情所困 2017-05-16 17:05:37

nginx - Please give me some advice: One test domain name, multiple requirements can be tested in parallel at the same time

Please give me some advice: One test domain name, multiple requirements can be tested simultaneously and in parallel. Do I have to configure multiple test domain names? Is there any other solution? Let's take an example: There is a functional module on branch A, which later needs to be revised, and ...

大家讲道理 2017-05-16 17:08:03

Why can't I access the web page in LAN?

The webpage is a static webpage. After it is set up according to the tutorial, other computers in the LAN cannot access it.

玛雅婚纱婚庆阿科（财务） 2021-01-10 11:33:29

In PHP, IntCalendar outputs wrong locale.

I have the following code which I believe should output fr_FR as the locale, but for some reason it outputs en_US_POSIX (regardless of time zone). What did i do wrong? $loc = IntlCalendar::createInstance(new DateTimeZone('Europe/Paris')); echo $loc->getLocale(Locale::VALID_LOCALE);

P粉553428780 2023-07-28 12:49:22

centos7 - centos 7 apache cannot connect to the LAN after adding virtual IP

After adding a virtual IP to centos 7 apache, it cannot be connected in the LAN. I can connect locally. ipconfig eth0:0 192.168.1.10 has also been set. I can connect to the current machine but cannot connect to the LAN.

ringa_lee 2017-05-16 16:58:12

java - Whether users from different regions are divided into tables and groups in the database

For example, for takeout products, in order to facilitate the allocation of user orders to deliverymen, users in the same area will be grouped in the database. If they are grouped, there will be many areas and many groups.

PHP中文网 2017-05-24 11:33:15

Unable to create responsive grid area using svg image

When I try to create a responsive grid area containing an svg image, I'm encountering strange behavior, such as arbitrary grid area widths, and not being able to get the image to grow or shrink to a certain point without stopping. The closest I got was: *{box-sizing:border-box;}body{margin:0;}header...

P粉022140576 2023-08-30 19:15:16

Control CodeMirror: Modify the style of text area placeholders

I'm using version 5.65.7 of the CodeMirror plugin in a textarea in a Vuejs based web application and everything is working fine without any issues. I want to add a placeholder to my textarea so I have added the corresponding placeholder file to my application and I can see the placeholder in my text...

P粉021708275 2024-03-28 19:22:27

javascript - dropload+tab page, how to break the two scroll areas when scrolling on graphic and text pages?

How can I break something like this with two scroll bars? I only want to display one. Currently, the scroll bar is scrolling in the outer scroll bar when sliding. When the inner scroll bar is touched, only the inner scroll bar area moves, and the upper banner area does not move. .

伊谢尔伦 2017-06-08 11:03:15

"Boundary of XY coordinate area"

In version 3.4.0, the lightNew theme's XY coordinate area does not have top and right borders. I want to modify the border of the lightNew theme, but I can't find the attribute I want in the 3.4.0 documentation. Enter image description here I've tried almost every property related to "StrokeSty...

P粉982054449 2023-09-14 09:39:59

php - When deploying the website, a gray area appears in the header of the page. I don't know what's going on?

I wrote a website using HTML5, thinkphp, and bootstrap4.0beta. The homepage copied an online resource and tested it locally with phpstudy. The page effect is fine. But when deployed on Alibaba Cloud's lamp, a gray area appeared at the top of the page, which was very eye-catching. Guys, please help m...

欧阳克 2017-06-19 09:07:00

php - Help Qiniu Cloud [Test domain name and custom domain name] The display size of the same picture is inconsistent

An accelerated domain name I customized: static.caikes.com The test domain name provided by Qiniu Cloud: orezv6iwd.bkt.clouddn.com Why are the sizes of the same image accessed inconsistently? http://orezv6iwd.bkt.clouddn.... and http://static.caikes.com/lol/...

ringa_lee 2017-06-20 10:07:32