apache - The server suddenly consumes 97% of memory for a command. Is it a lottery?

Suddenly a command consumes more than 97 memory. After killing it, it starts up again after a few hours. Did he win a lottery? Find the solution! Thanks

黄舟 2017-05-16 16:57:37 0  1  512

javascript - The effect of a lottery (as shown in the picture)?

An effect of randomly rotating each avatar picture. Does anyone have a similar demo or provide a method? Thank you for your help.

阿神 2017-06-05 11:10:32 0  2  687

Please tell me how jQuery does not go back to the page after pressing the return key on the phone, but directly closes the page.

Some application pages do not want to return to the previous page, but when operating on a mobile phone, they often press the return key unconsciously. I would like to ask you to write a function using jQuery. After pressing the return key on the mobile phone, how can you not return to the page, or ...

阿戈 2020-06-25 08:09:34 0  0  1379

Make a lottery system

I am going to use TP5.1 to build a lottery system. When the username (lottery user) in the database has the same name, for example, there are two Zhang Sans. How do I detect them and change them to Zhang San 1 and Zhang San 2?

林瑞程 2019-12-05 20:34:28 0  9  1585

JavaScript bitwise NOT operator (~)

See the lottery code {code...} of <TFC2017/> Why can the ~ operator round numbers?

伊谢尔伦 2017-06-28 09:29:08 0  1  1022

javascript - Use vue to make a lottery question

Code: {Code...} For example, the display should stop after 10 seconds. When it is almost 10 seconds, it should stop slowly. This way users will have that sense of excitement. I believe everyone has played roulette, just like that. But don't know how to do it.

ringa_lee 2017-06-30 09:55:08 0  2  839

The rewritten title is: How to implement automatic closing of submenu in jQuery

I'm trying to create a jQuery dropdown menu for a mobile view. I'm new to jQuery and I'm using Toggle to hide and show submenus. My problem is that when I click on a menu item, the other submenus don't close automatically. For example, if I click menutwo, I want menuone to close automatically. How c...

P粉312631645 2023-09-16 09:10:19 0  2  1094

Detect browser or tab closure

Is there any cross-browser JavaScript/jQuery code that can detect if the browser or browser tab is closed, as opposed to being caused by clicking on a link?

P粉760675452 2023-07-31 13:55:00 0  2  598

node.js - How to solve the path problem when installing webpack under windows?

1. The following error occurs when installing webpack under Windows. I know it is a path problem, but I don’t know how to solve it. I am not familiar with the commands under Windows. I have used npm to install other modules of node before with no problem, but the same problem occurred when installin...

PHP中文网 2017-06-22 11:54:26 0  1  1012

Are there any friends who have won the lottery who have no time to learn? You can contact me. I am QQ11169028 on the 241st floor.

The difference is one floor. .

victory! 2017-11-21 13:03:54 0  3  888

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 0  2  672

javascript - jquery uses the for method to obtain the page attribute value of a repeated name and cannot get help.

The situation is as follows: I have a form that needs to dynamically add input items, and the name of each input item is the same. Since non-null verification is required, consider using jquery to obtain the value of each element and judge it. The code is as follows: $("#reg").click(functi...

PHPz 2017-05-19 10:17:03 0  3  506

Baidu search shows abnormal results. Please give me some advice. Thank you.

First of all, let me introduce that our company's website address is: www.comany.cn. Two months ago, the website was hacked by a lottery company. After the malicious Trojan was cleared, the Baidu search results page displayed like this: I tried changing the characters The set was changed from "...

Tony Chang 2018-06-05 13:27:53 0  0  1096

javascript - Are there any popular names for actual parameters and formal parameters? Especially formal parameters

I have never understood it. For actual parameters, I would add $ in front of the jquery object and use camel case to name it. For other string arrays, I would use str/arr and use camel case to name it. This actual parameter is not bad. I don’t know how to name the key formal parameters. Sometimes I ...

ringa_lee 2017-07-05 10:57:24 0  2  982

The element must disappear when the page nears the end

I have this JS code for adding and removing classes when scrolling down from the top of the page, but what I want to do is disappear when you get close to the end of the page or go back to revert to the old state after some scrolling (e.g. from the right: 7px to right: -150px). I copied the same JS ...

P粉463418483 2024-03-29 23:04:00 0  1  369

javascript - As a beginner in programming, should I use an editor to copy the source code of jQuery or thinkphp?

Beginners in programming, do you want to use an editor to copy the source code of the jQuery library or thinkphp framework? To improve your programming abilities and ideas? I remember seeing a person on Zhihu who did the same thing. Now look for that answer. Not here. Can the experts tell me how eff...

高洛峰 2017-06-05 11:07:36 0  3  589

JQ counts down every 10 minutes

The project requires a draw every 10 minutes, which needs to be synchronized with the server time. To prevent cheating, my idea is to use ajax to get the server time every 10 seconds, and then use JQ to compare the countdown. For example, the time I retrieved is 18:02, my lottery draw time is 18:09,...

按键盘手指磨破皮 2017-12-05 18:04:58 0  4  1867

javascript - Too many UI style calculations cause the browser to load too slowly, especially in IE. Please ask for guidance from seniors.

Some time ago, I used EasyUI+jQuery to create a page. I didn’t feel there was any loading problem at first, but as the data increased, the loading time slowed down very obviously. Chrome usually takes more than 20 seconds, and IE is opening In the case of performance analysis, it actually takes more...

習慣沉默 2017-07-05 10:40:49 0  3  994

javascript - Where are interactions and events written in react?

When I am new to react, I still use jquery to handle events as before. Suppose I use index.js to organize some components a.js b.js. I need to implement ajax to load images in a certain component. Where should this event be mounted? compnentDidMount? Do all events need to be mounted in the group...

给我你的怀抱 2017-05-19 10:34:33 0  4  595

Loop through multiple elements and calculate the price discount for each element

I'm trying to find the percentage difference between the old price and the new price for each individual. Currently, my code only gets the percentage difference of the first one and loops the same percentage difference into the rest. Does anyone know how to update this code to target each individual...

P粉506963842 2023-09-02 17:14:31 0  1  516