javascript - How to use the request library in nodejs to capture images from web pages

{Code...} I wrote request and writefile in the form of promise. It is possible to capture html, but not images. At first, the data output is of string type, that is, the body of the request is of string type, so I Use Buffer.from to convert to buffer type, also...

滿天的星座 2017-06-17 09:16:39 0  1  877

Using classList in Javascript function to add CSS classes, but styles conflict because latest class does not take precedence

My function counts the number of cards visible on the screen and if all are displayed then adds arrow-up class to my icon and if some cards are still hidden from user then arrow-down icon is added. constshowMoreIcon=document.querySelector('.cta-icon');functionmyFunction(){constbtnIcon=cardsOnShow>...

P粉738821035 2023-09-10 17:10:38 0  2  574

php - weui upload multiple images uploaded at the same time

The problem currently encountered is the application's weui image upload framework, but the preview part li in the code obtains images of type blob. But there is only one input, submitted to php through ajax, and only the last picture can be obtained.

巴扎黑 2017-06-05 11:09:24 0  2  782

Store HTML DOM results into MySQL database

I'm trying to store scraped data into my database. It just outputs the results, so the crawling is normal. But there is definitely an error in defining the variable and passing it to mysql-insert. I get the message "New record created successfully". The result of the variable is empty and ...

P粉549986089 2023-09-15 23:41:06 0  1  582

Display json type data in blade

Displaying json type data in blade I have a table in my database which stores data and one of the data is of json type, everything is going fine but when I want to display these json in blade the problem starts which is My json data type [![Enter image description here][1]][1] In my blade I use php ...

P粉064448449 2024-03-22 12:05:15 0  1  354

javascript - Mobile selection plug-in, but the data is defined by itself

It is similar to the effect on the right, but the data inside is customized. First of all, it is the effect of the mobile terminal. Secondly, there are many lists. To display the effect according to the picture, the data can be the data obtained from the background.

PHP中文网 2017-06-14 10:54:06 0  2  650

javascript - Why can't I preview after taking a photo with WeChat jssdk?

When calling the WeChat interface chooseimg, in the successful callback function, according to WeChat, each ID in the local ID list of the selected photo is taken out and used as the src of the displayed image, but in fact all the IDs have been returned. But after putting it in html, the image {code...

黄舟 2017-05-19 10:35:02 0  1  715

angular.js - How to bind events to child elements in templates in angular directives?

{Code...} The function I want is that after touching the picture, the picture will change to another one, and then change back again after the touch is completed. At the same time, the method in ng-click will be called, so I want to give the first position under the div An event is added to an img, ...

漂亮男人 2017-05-15 17:08:16 0  3  662

PHP nested function and anonymous function scope issues

{Code...} All functions and classes in PHP have global scope and can be defined within a function and called outside it, and vice versa. Why can function b obtain the local variables of function a by passing parameters? {Code...} Similarly, why does the anonymous function also obtain external variab...

phpcn_u1582 2017-05-18 10:45:34 0  1  626

How to upload file array using formData

Because clicking input type='file' again will overwrite the previous fileList, I first convert the selected file into base64 as a preview image, similar to this. It can be added multiple times, but how do I add multiple preview images when uploading? Add it to the formdata object and accept paramete...

PHP中文网 2017-07-05 11:02:53 0  3  1658

BeautifulSoup ingests all data, but .findAll() only returns links to one parent

I'm trying to scrape a website using BeautifulSoup in Python. All data is ingested, including all links I try to access. However, when I use the .findAll() function, it only returns part of the link I'm looking for. That is to say, only the link /html/body/div[1]/div/div[2]/div/div[2]/div[1] in the ...

P粉654894952 2023-09-14 12:14:43 0  1  447

Code handling of lengthy data URIs

I use data URI, base64 to add images and videos to my game, but I found that if I want to make a game with multiple videos, each video will be over 500 lines of code, so is there any good way ? Suggested to handle this type of file, what I really did was make a Mixin file and make multiple functions...

P粉872182023 2024-02-03 22:56:39 0  1  437

node.js - node crawler, request to set proxy, always reports an error for help

I used request to crawl images. In order to prevent the IP address from being blocked, I used a proxy. However, after using the proxy, I always reported an error. nodejs uses the request and async modules {code...} download(item,cb), cb is the callback function of the control process in async: {code...

学习ing 2017-06-21 10:12:18 0  2  1066

Enhance user model

I'm trying to extend the user model with another table (profile) to get the profile picture, location, etc. Can I override the User model's index() function to do this? Current model code: <?phpnamespaceApp\Models;useIlluminate\Database\Eloquent\Factories\HasFactory;useIlluminate\Foundation\Auth\...

P粉311464935 2024-01-10 17:17:58 0  1  363

Using PHP, can I put a foreach statement into a transient?

I'm working in WP using PHP and trying to reduce the load time of a function that fetches a lot of data. I thought transients would work, and (as shown below) I loaded the course query in transients, but it doesn't work with the foreach statement, or rather, I don't know how to set it up correctly t...

P粉352408038 2024-04-03 17:12:43 0  2  501

Does PHP 8.1 break the functionality of the inner class SoapClient?

While making a library that uses PHP's SoapClient and is PHP8.1 compatible, I ran into this problem: All properties of SoapClient are now private when they were public before. So things like getting the last soap fault ($soapClient->__soap_fault) are no longer possible. But if something goes wron...

P粉615886660 2023-12-12 22:52:40 0  1  528

How to get the constructor class name of the passed in object in PHP?

Suppose I have the following class structure: classLogger{publicfunction__construct(string$channel){//Logger initialization work}}classUsingLogger{privateLogger$logger;publicfunction__construct(Logger$logger){$this->logger=$logger;}}$logger =newLog

P粉413307845 2023-09-11 11:23:19 0  1  623

How to get openid after scanning the QR code image generated with PHP?

I used the PHP QR code generation class library to generate a QR code picture (not generated by the WeChat interface). I want to get the openid of a WeChat user after scanning the QR code. How can I implement this function? (I previously thought of using web page authorization to achieve this, but t...

LRTRL 2017-06-28 16:57:44 0  1  2013

Please take a look and teach me this newbie.

I now have a table like this. The numbers in it are ages, which are read from the database. The following is the PHP code. The effect I want now is to divide the colors according to the zodiac, (for example: 01, 13, 25, 37, 49 If the zodiac sign is Rooster, write Rooster below the age, with a red ba...

大浪淘金 2017-07-22 15:08:00 0  4  1222

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 0  1  825