Asksearch_php.cn

Community Learn Tools Library Leisure

English

Popular searches：
PHP
MySQL
jquery
HTML
CSS

javascript - What is the principle of loading images on Zhihu?

Initially, it's all blurry, then when within the screen view, it's in high definition. Is it loading pre-processed low-pixel images at the beginning and then displaying high-definition images? Or, is it some other method?

我想大声告诉你 2017-05-24 11:32:17

php - How to efficiently convert PDF to clear PNG

The requirement is to convert the high-definition vector PDF to PNG. After the image is enlarged, the small characters on the image can be seen clearly without being too blurry. The current solution is PHP imagick, and when setResolution is set to 500, the desired clarity can be achieved. At this ti...

过去多啦不再A梦 2017-05-16 13:01:37

Implementing a Pinterest-like CSS grid of dynamic images in React

So I'm trying to use CSSGrid to make a Pinterest-like image gallery. So pictures of different heights can be next to each other, and each picture can take up empty space. But all the examples I've seen add different classes on each image based on the height they want, whereas I want to add images dy...

P粉614840363 2024-03-21 20:21:31

javascript - How is Zhihu's image loading implemented?

See the Zhihu document. How to evaluate Visual Studio Code? There is an interesting feature on the page. Before the image is loaded, a white canvas will be displayed. Then, an image that looks like a Gaussian blur will be displayed. Finally, a clear image will be displayed. This is interesting. How ...

大家讲道理 2017-06-26 10:58:20

javascript - How to make a high-quality picture on the front end compatible with multiple terminals

I have a high-quality picture. How can I make it compatible with multiple terminals, such as PC and mobile terminals? The mobile terminals include Android and Apple. How can I make it compatible?

淡淡烟草味 2017-05-16 13:36:58

python - Saw a small project waifu2x based on convolutional neural network to improve image resolution on github? ?

I am new to machine learning. I would like to ask, after understanding the algorithm and related knowledge of this small project, how to write a small software like the one below and apply it in practice? ? This is the link to github: https://github.com/nagadomi/w... This is an online website for im...

学习ing 2017-06-23 09:14:51

javascript - rem unit compatibility issue, why is the height of oppo's own browser image uncontrolled

Use rem to make mobile pages. During the testing phase, there was no problem. On IOS, Android and other mobile phones, everything was perfect. However, when opening the page with the browser that comes with the oppo phone, rem failed. Only the height of the picture failed, and all pictures were comp...

大家讲道理 2017-06-26 10:53:25

Prevent scrollIntoView() from scrolling the container to the top of the page

I'm trying to build a simple "mainly css" image carousel that uses scroll snapping but also has navigation buttons to control the currently viewed slide. The only solution I've found is to use scrollIntoView() on the target element, which does what I want, but it also always scrolls the ta...

P粉690200856 2024-03-26 20:25:28

How to implement this responsive layout using flexbox

I'm making a React app that renders an xy number of cards and a single widget inside a Flex container. All cards have the same width and height, but the widget's height is equal to card height * 2 + row-gap. The width of the container changes depending on the viewport width and should visually appea...

P粉733166744 2024-02-26 19:29:01

html - css navigation bar is blurred, the navigation bar is fixed, and the page below is blurred as the page slides. How to achieve this?

After searching for a long time on the Internet, I couldn't find a solution that can dynamically affect the page below and make it blurry. This is a blur effect from Station B. It is static. The principle is to use two identical pictures, blur part of one and merge it with the other. My idea is to a...

大家讲道理 2017-05-24 11:36:02

Optimizing React Application Performance: An Efficient Way to Render Large Numbers of Projects

I'm developing a React application and need to display a large list of items (thousands of rows). Currently, performance is very slow when the user scrolls through the list or filters items. Is there any way to optimize the performance of my React application to improve user experience? Some additio...

P粉733166744 2024-01-16 20:43:20

Use Tailwind CSS to ensure fixed width and height of cards in CSS grid

I'm building an app using TailwindCSS and React, and in one of the views I have a grid of cards. Currently it looks like this: As you can see, when I shrink the window, the cards squeeze into it. I want to make sure that the card size (width and height) always stays the same and if the number of car...

P粉184747536 2024-03-26 21:34:28

The title is rewritten as: Vuetify's v-img automatically adjusts according to the container size, not according to the src size

Vuetify's documentation on v-img is as follows: v-img will automatically resize itself according to the size of its src, maintaining the correct aspect ratio. You can limit the size using the height and max-height properties. However, it will automatically resize itself based on the size of the cont...

P粉511896716 2023-08-25 11:52:29

Setting the Width of the Code Box (PrismJS): A Guide to Practical Tips

So I'm basically trying to set a width for a code box (I'm using prismJS) and when I add too much code it causes everything to break and the width and height to increase. I want to be able to specify the width and height so if the code is too long it just adds a scrollbar. This is the size I want th...

P粉392861047 2023-09-01 13:37:19

Create a navigation bar similar to toast ui home page

My source of inspiration I wanted to make a navigation bar like this: Toastui Home Page What I did I tried to copy as much as possible to achieve this. I get the following: What I want I want something like this (these were made via image editing): Option 1: Center aligned Option 2: Left aligned I w...

P粉619896145 2024-04-01 18:34:38

Ways to fix issue 2003 (HY000): Unable to connect to MySQL server 'db_mysql:3306' (111)

I recently tried to containerize my FastAPIPython server (also for replication/doubling purposes). Before, I had just a MySQL server in a Docker container and everything was fine, but when I also made my web server a service, it couldn't connect to the MySQL server, so now the application doesn't wo...

P粉178132828 2023-09-05 11:18:47

Experiment with sorting after query limit

So this is my first question here, please forgive me if something is wrong. I'm trying to make a sort query based on constraints. So there is a Customers table with 90 records. I want to first perform a query limited to 3 records, and then sort the results of this query by a column called ContactNam...

P粉237125700 2023-09-05 14:46:42

CSS Grid: Create new row when child content overflows column width

I have a two column layout based on CSS grid. When the content of the second column exceeds 1fr I want to create a new row. As it currently stands, the content simply overflows the column. One requirement of this layout is that the items in the right menu column are in one row. I achieve this with: ...

P粉212114661 2023-09-05 15:18:28

PHP full text search functionality using AND, OR and NOT operators

Newbie question: I'm trying to implement a full text search on a search string using php and eloquent. $searchstring="+(victimsuspect)+crime-covid";$searchresult=RssItem::whereRaw("MATCH(description)AGAINST('$searchstring'INBOOLEANMODE)")->ge

P粉076987386 2023-09-05 15:06:32

Shortest way to convert all PHP types to string

I'm writing a general system that I hope can one day be applied to fields like medicine (i.e. it's "scientific"). I think the best way is to represent all the data in php with strings (true will be "true", false will be "false" and so on). The reason for this is that in...

P粉369196603 2023-09-05 15:34:44