I have an Internet of things terminal device that sends data to the designated port of the cloud server (including device number, base station information, light intensity temperature, etc.). Now I want to use nodejs to write a listener on the server sid...
1. The project background is written in node, and the data can be obtained through the direct access interface. The server is a local server with a port number of 3000, 2.vue-resource8080proxyTable404 . ...
problem description how npm adds other contributors the environmental background of the problems and what methods you have tried released a npm package myself. I hope others have permission to update this package version . what should I do? ...
how do you calculate the page load time? ...
problem description set cache-control in the meta tag in the html file, but the relevant cache-control is not returned in the response header the environmental background of the problems and what methods you have tried tried pragma, too. what re...
how can I click on the transfer page to display a load rotation icon, and then render the server to complete the display? ...
<el-select v-model="pawnForm.assetsId" filterable allow-create default-first-option placeholder="" class="el-element--custom" @change="assetChange"> <el-option v-for=&qu...
https: live.leisu.com can refer to this website. There is the latest returned data in the source code, which can be used by seo, but his rendering is local js (otherwise, how can there be animation waiting)? ...
function http_get (ip, port) { let WAN = false; http.ClientRequest var data = { msg: can you hear me? , time: new Date().getTime() }; var content = qs.stringify(data); var options = { host : ip,...
1. When data.length=3, only 2 pieces of data are stored in the database, is it because the callback function is written wrong? function insertData (data) { var events = []; var count = 0; for (var i = 0; i < data.length; iPP) { ...
error visiting website Unable to round-trip http request to upstream: dial tcp xxx.xxx.xxx: connectex: No connection could be made because the target machine actively refused it. if you want to do a search on the Internet, just turn off the blue light...
-problem description recently learned to use express and mongodb; to do demo examples, and found a problem, that is, every time a request is sent from the page to add data to the table, the first time is normal, the second time it is wrong? -correspo...
if server downtime is excluded, there are other servers available at the same time. In terms of performance, is it better to use a machine with more memory, more processes, and stronger CPU, or is it better to use multiple servers with relatively low pe...
lei-sharp-sharp-sharp problem description the termination here does not refer to the termination when the condition is reached, but by external force. I use koa as the web service and puppeteer as the crawler to read the list of the database in a loo...
this ID is clearly documented. Why report this error? ...
I want to superimpose two numbers on the array const recomArr = [{ mycount: 12, myhour: 0 }, { mycount: 5, myhour: 1 }, { mycount: 3, myhour: 2 }, { mycount: 3, myhour: 3 }, { mycount: 3, myhour: 4 }, { mycount: 1, myhour: 5 }, { mycount: 3, myhour: 6 ...
where is the specific problem? ask for help ...
when using tabbar of iview-weapp, if tabbar is used as a component, will all pages that call tabbar refer to tabbar again? and after referencing, the following tabbar will refresh and flash when you click on the jump page. How to solve this problem? ...
npm WARN deprecated browserslist@1.7.7: Browserslist 2 could fail on reading Browserslist >3.0 config used in other tools. > node-sass@4.11.0 install developer git-repo shop-backend node_modules node-sass > node scripts install.js Unable to sa...
as mentioned, in other editors, enter is used, and vscode enter is to modify the file name ....
for a key daily maximum limit, such as key axiom 100; can succeed if it is less than 100. use redis as storage if the concurrency is relatively large, the program logic first determines whether the value of key is less than 100, and then the value of ...
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...
https: github.com fluent-ffm. I would like to ask how to use fluent-ffmpeg to achieve slow video playback, for example, if the original video is 8 minutes, the exported video is twice as slow to 16 minutes! < H1 > Thank you < H1 > ...
there are in the manifest file. <!--android:name="JW_LICENSE_KEY"--> <!--android:value="YOUR_LICENSE_KEY" >--> JW_LICENSE_KEY YOUR_LICENSE_KEY ...
I would like to ask the great god, who knows how this kind of picture is made? you can see that svg, is used. Who knows? ...