is to see the demo code in Ruan Yifeng s ES6 bablees5 question: 1. So you have to use module.exports and require? to use module. two If you follow the above method, it is not still to import the whole module and then read specific proper...
I store a lot of parameters in a file, all separated by newline (n). for example: a muri 1 a muri 2 bMel 1 Cmuri 1 bMel 2 a muri 3 I can take out and save as an array. let arr = content.split ( [s] n [s] ) how can you take only specific arr...
suppose I only have the login interface now, and I don t know what the picture looks like. like login interface picture CAPTCHA parameter: imgcaptcha:xxxx. I don t know what the value is. is it necessary to simulate the login page, get the image ver...
I want to use node to transfer files to other servers has been implemented using request or axios libraries, but I want to get the progress of the transfer what should I do? request let form = { type: zip , file:file, path: temp ...
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I want to make a simple Mini Game similar to tank wars requires keyboard control to move Mouse click to fire bullets in the target direction however, when you control the movement, you can t fire the bullet. You need to stop the movement, and t...
how does the background management system display in the background to set the time and place of the last login ...
there is a sentence in the API nodejs that is not clear. Please answer the question. [assert.deepStrictEqual (actual, expected [, message]] ( https: nodejs.org dist lates. there is a saying: Type tags of objects should be the same. that s the que...
const Koa = require( koa ) const route = require( koa-route ) const app = new Koa() app.use(async function middleware1(ctx, next) { console.log( middleware1 ) await next() console.log( middleware1 ) }) app.use(async function middleware2...
want to configure the agent for the front-end static file. Redirect the static files of the node server to Apache. The configuration is as follows: RewriteCond %{REQUEST_URI} ^.*( .css| .js| .gif| .png| .jpg| .jpeg)$ RewriteCond home work plat p...
url let base64 = imgSrc.replace( ^data:image w+;base64, , "") buffer let dataBuffer = new Buffer(base64, base64 ) let path = static upload image + .jpg fs.wr...
function to be realized: 1. When the user clicks "join the shopping cart " in the interface, the front end will give a productId to the background, and the background will query the corresponding product information in the database according to the pr...
recently, I am doing a web crawler, first grab the list page, then get the url, of all the content pages of the list page, and then call the url loop of all the list pages to the crawling method, which leads to the uncontrollable crawling order. I want ...
there is no problem in creating a file in txt format, but when you create a file in js format, you will see that [object Object] is written like this. IndustryReader is a [{}] Array (object) format from other files. const industryReader = require(...
vscode paste will have an extra line of space after it. How to solve this problem? ...
ask for advice on how to achieve this inner shadow effect in svg ...
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ppt if ( req.files[0].mimetype === application vnd.openxmlformats-officedocument.presentationml.presentation || req.files[0].mimetype === application vnd.ms-powerpoint ) { var form = formstream(); form.buffer( file , des_fil...
now I use an interface written by angularjs. I use the angularjs method to set withCredentials to true. In the search method, it is said that if you set it to true,cookie, you can put it in the request header and pass it to the background, but it has no...
how do you write the following code in node? const hash = crypto.createHash( MD5 ) hash.update( aesKey ) const aesKeySignStr = hash.digest() const iv = Math.random().toString( 36 ).substr( 2 ) const cipher = crypto.createCipher( aes-128-cbc , a...
what is returned in this picture is the picture information selected when the picture is uploaded code is as follows var imgFile = new ImgUploadeFiles( .box ,function(e){ this.init({ MAX : 3, MH : 58...
topic description as the following code, I finally want to print out soup related codes import requests from bs4 import BeautifulSoup def get_webpage(url): html_page=requests.get(url) if html_page.status_code!=200: print("invalid url"...
Hello, everyone I am a novice, and recently I have been learning Javascript, to ask a question. I now want to achieve each form function. There are two fields in the form. When I enter characters in the A field, the value of the B field will be encrypt...
learn CPP, the code is an exercise of string substitution, in which the expression p = strstr (pdjm)! = NULL in the while loop will report an error at this point. if you change this sentence to ((p = strstr)! = NULL), there will be no problem if you e...
I need to add pthread extensions to php on a server, cd pthreads phpize . configure prompt when compiling this step configure: error: pthreads requires ZTS, please re-compile PHP with ZTS enabled check whether it needs to be recompiled. Add-enable-m...