wrote a very simple module, and then another module reference, error module is not defined 1, this is the directory structure: 2: 3, this is a reported error Administrator@WIN10-20181106R MINGW64 ~ Desktop test $ node Demo.js C: Users Admini...
the express service is configured locally, and the get request is fine, but the data cannot be obtained when the post request is made. Req.body is always undefined. The corresponding body-parser is also configured, but it doesn t work const app = expr...
an error occurred with previsional headers are shown ...
is to use res.render, the transmitted data is directly used as an object in ejs, not displayed, and then need to be traversed to get the data. And then it shows up in the browser. ...
use the fs.read () method of nodejs to read part of the txt file. The buffer is set to 1024 bytes. because one Chinese character occupies two bytes, occasionally the last Chinese character reads only one byte, resulting in garbled code . var fs =...
rookie problem, ask for a favor for (var I = 0; I < 5; iPP) { setTimeout (function () {console.log (I);}, I * 1000); } know that the output of five 5s knows that this fast is caused by the event queue and scope, but the results are different when us...
docker-compose.yml file version: "3" services: mysql: build: . services mysql container_name: mysql ports: - ${MYSQL_PORT}:3306 volumes: - ${MYSQL_DATA_PATH}: var lib mysql:rw ...
such as the question, have you ever used it? ...
problem description I don t know if iview s official website explodes or version 3.0 changes to 2.0, but I can t open it. the environmental background of the problems and what methods you have tried related codes Please paste the code t...
var timer1 = (cb, time) => { (function loop() { cb(); setTimeout(loop, time); })(); }; var timer2 = (cb, time) => { cb(); setInterval(cb, time); }; Is the timer1 code looping or recursive? what s the difference between timer1 ...
let time = { endDate: "2019-02-23", endTime: "17:00:35", startDate: "2019-02-23", startTime: "17:50:35" }; endDate+...
logs are recorded before each operation to prevent data loss caused by interruptions. do the following: A log B redis count + 1 C clear log 1. If the execution of An is interrupted, check the log after startup, and you can perform operation B aga...
: {{item.value}} < el-dropdown-item> < template> command= {{item.value}} how to write this? ...
problem description the current use of virtual hosts purchased in school days + registered domain names, but only virtual hosts, and is php, search the Ali Cloud virtual host solution to HTTPS, and see the purchase of a HTTPS CDN, it seems to be unsuc...
how does mpvue introduce Mogujie s UI framework-MinUI? according to their official website, the installation was not successful. It may be that there is something wrong with my understanding, but for people like me who have poor understanding, what t...
M664.261517.521c0meme 6.627-5.372Magi 12-12H520.826c 12V386.087c0 6.627Magi 0-12-5.373-12-12V386.087c0-6.627Magi 5.373-12h131.435c6.628Magi 12M664.261517.521z if the above is a d attribute in a path tag, now it is necessary to separate these values into...
problem description debug node in vscode Xiang, and configure the debug file as follows: : This function is executed when logs in, and cmd has printed 99999999999999, but the program does not block at the breakpoint, nor does it report an error ...
for example, if several cluster are enabled, it is impossible for each cluster to instantiate its own database. if not, then master instantiates the database, and cluster requests master if it needs to query data. as a result, it feels like the amount ...
I have two plans now. One is to grow directly with numbers . let weight= { : 10, : 5, : 7, : 4, : 7, ufo : 3, } the other is to parse the characte...
the problem is shown in figure I will record this question by asking and answering myself ...
recently, I have done nailing micro-applications. After every iteration of the project version, after the code update is launched, basically every phone has to manually clear the cache, otherwise it will always be the old code. I wonder if there is any ...
the php image verification code is used in the background, and the front end carries the cookie verification code through fetch. There are multiple projects in a domain name that require picture CAPTCHA to verify login. On Android phones, every project ...
I tried to encapsulate it, but it didn t work. It was embarrassing. has it been encapsulated by a boss? Ask for a code to learn, hard work you sent down, thank you! by the way, you need an encapsulated call like async await ...
in a plan, there are many points and some points will be connected. Please group these points. The grouping rule is: 1) there is no connection between groups 2) there must be connections between points within groups how to implement such a groupin...
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