javascript - Front-end performance optimization, how to locate the blank time between timeLine resources?

I just came into contact with the front-end optimization of a project. When I looked at timeLine in Google Developer Tools, I found that there was a blank space between two resources, as shown in the picture. I don’t know what caused it. How to locate & optimize it? .]

世界只因有你 2017-06-26 10:51:10 0  2  885

javascript - The front-end was asked about performance and security. Is there a comprehensive summary?

Front-end performance and security are more important and are often mentioned. Some of my personal understanding: Performance file merging, file compression, Sprite image gzip [generally configured on nginx or Apache in the background, it seems that the front-end is out of the question] dynamic load...

巴扎黑 2017-05-18 10:58:41 0  3  867

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 0  1  465

Under what circumstances should cache be used? How to optimize the front and back ends (mini program page)

A product details interface, query data through product ID, and the front end mainly displays a picture. Database field pictue: the saved picture address, the picture is stored on the server. The problem now is that the pictures are loading too slowly, sometimes it takes a second to open, and someti...

小萝卜头 2020-05-16 18:32:29 0  3  1382

angular.js - The server side does not use the view layer, and all APIs are used to return json, which is handed over to the front-end angularjs for rendering. Is it suitable for an e-commerce website?

Our overall requirement is to do PC web in the early stage and mobile web in the later stage. Should I use jquery + bootstrap for the PC web separately and angularjs for the mobile terminal, or should I use angularjs directly? Comprehensive consideration of performance (caching), security, overall d...

世界只因有你 2017-05-15 16:53:24 0  3  682

node.js - Why is nodejs not popular on the server side?

In the past few years, everyone has been enthusiastic about nodejs. Nodejs has high performance, uses the same language for the front and backend, and saves development resources. But why are the domestic server-side languages ​​​​still mainly PHP and Java? In terms of front-end engineering, nodejs,...

習慣沉默 2017-05-16 13:21:00 0  5  2915

node.js i/o optimization - Stack Overflow

How does node.js optimize i/o performance? I wonder if this senior has any experience to share?

phpcn_u1582 2017-05-24 11:38:47 0  1  720

javascript - performance optimization issues

How to optimize this code? The boss said that it should be converted into ES6 map data structure. I may have done it wrong and it seems to be slower. This is the optimization I did. It seems to be slower. Please give me some advice.

高洛峰 2017-07-05 10:54:21 0  6  1057

Find a front-end UNIAPP to help adapt the APP. It is best to have someone local in Changsha who can cooperate with you for a long time.

Find a front-end UNIAPP to help adapt the APP. It is best if it is local in Changsha. It can be used for long-term cooperation. Currently, it can only be billed by project or part-time. The current task is to adapt the front-end and small programs and optimize it. It is best to contact vx:crw689, a ...

@A~旺仔 2022-04-11 12:27:02 0  1  1159

Front-end - Can you provide some better angularjs project cases?

Mainly I want to see how other people's structures are set up. I'm just getting started now, and I haven't been exposed to any front-end automation tools. The current project structure is based on type first, function second, and I want to see some structures that prioritize function. Take a look at...

曾经蜡笔没有小新 2017-05-15 16:59:15 0  6  726

javascript - Why is it said that the separation of front and back ends is not conducive to seo

I just recently built a multi-page Vue project, but I saw many people on the Internet saying that the separation of front-end and back-end is not conducive to SEO. Why? Is it conducive to SEO optimization to write static pages on the front end and send them to the back end for server-side rendering?...

PHP中文网 2017-05-19 10:11:53 0  3  1183

Mysql query returns too slowly

I have written a query. It works better. But currently, all tables have 100K rows, and one of my queries is returning too slowly. Can you suggest me how to optimize my query? select*fromtbl_xray_informationXWHERElocationCode=(SELECTt.idfromtbl_locationtwhereCODE='202')AND(communicate_with_ptisNULL||...

P粉727531237 2024-03-30 18:25:44 0  1  539

javascript - The page is stuck when opening, please optimize it, thank you!

Because a lot of pictures are used, the page opens very slowly. How can we optimize it well? The page has two parts, PC and mobile. The main reason is that the PC is very laggy.

世界只因有你 2017-06-28 09:28:19 0  4  940

react large list performance issue - Stack Overflow

Now we use React to obtain a large amount of data, render it, and display it on the page. How to optimize performance?

黄舟 2017-07-05 10:49:27 0  1  1059

javascript - Weex Android debugging issues

As shown in the picture, Chrome is used. In debugger mode, this message always appears in red. Sometimes it takes a long time for the front end to load. Is there any optimization plan?

给我你的怀抱 2017-05-16 13:31:38 0  3  729

javascript - Data reception is slow. Is it an interface problem? Is this mainly a front-end optimization or a background optimization?

These interfaces are very slow to receive. Is it because loading other things blocks the loading? Or is there something wrong with the interfaces provided by the background itself?

高洛峰 2017-06-05 11:13:56 0  2  970

javascript - angular-cli uses ng build --prod and ng build --prod --aot to package files with the same size?

The size of my complete project after compilation using ng build --prod is 1713k, as shown in the figure. After using ng build --prod --aot, the size is still 1713k; Do --aot need other configuration parameters to be effective? 4. Or should we say that before using the --aot parameter, we need to pe...

天蓬老师 2017-07-05 10:39:00 0  2  893

Recruiting PHP development engineers

Job Responsibilities: 2+ years of PHP development experience, proficient in MySQL database, familiar with Linux operations, and able to use Git, continuous learning ability, good at communication, strong ability to withstand pressure, focus on efficiency, familiar with HTML5, CSS3, JavaScript and ot...

手机用户1617931986 2022-09-08 09:31:12 0  2  1083

javascript - Is there a front-end framework suitable for developing mobile Html5 web games?

I do PHP, and currently I only use simple javaScript and JQuery, and I have never used a front-end framework. Is there a front-end framework suitable for developing mobile Html5 web games? Just some simple mini-games, such as Snake, Tetris, and masturbation, which may need appropriate beautification...

仅有的幸福 2017-05-31 10:42:02 0  7  1374