how to check node js version

Use the n tool to easily manage the Node. js version and the n tool node. js version. Preface I believe that for learning Node. as all js co

Node. js static file server ultimate version, node. js static ultimate version First, I would like to thank github for providing the source code on github. Compared with last night's static file server, it is a little more complex

."); Console.log (ERR); Appendtologfile (folder,"File" +picurl+ "Download failed. \ n"); Failed++; }Else{appendtologfile (folder,"File" +picurl+ "Download succeeded. \ n"); Console.log ("File" +filename+ "Download succeeded"); Succeed++; } }); }); }); //Timeout ProcessingReq.settimeout (7500,function() {req.abort (); }); //Error HandlingReq.on (' Error ',function(err) {if(Err) {Console.log (' [downloadpic] file ' +picurl+ ' download failed, ' + '

HandlingReq.on (' Error ',function(err) {if(err.code== "Econnreset") {Console.log (' [Downloadpic]socket port connection timed out. ‘); Console.log (ERR); }Else{Console.log (' [Downloadpic] Request error occurred, Err.code: ' +Err.code); Console.log (ERR); } }); //End of Requestreq.end ();}//--------------------------------------//Program Entry//--------------------------------------functionGetInput () {Process.stdout.write ("\033[35m Please enter the first page url:\033[039

This article mainly introduces relevant information about the Community version of Node. js static file server. If you need it, please refer to it. First of all, thank github for providing the source code on github. Compared with last night's static file server, it is a little more complex and can learn a lot of new things. The Code contains a fs. stat function

Brief Introduction to node. js version control nvm and n, node. jsnvm Today's topic includes two parts 1. Use nvm or n for version control under node. js2. After the node.

If there are no tools and plugins to write JavaScript code to encounter syntax errors it takes time to ask a colleague how to check with node. jsReport a syntax error when testing with a browser.1. Click the blue button in the red circle, and the next refresh will automatically debug the breakpoint when the exception is thrown.3. After the error breakpoint, in the console with var a = code, the code is assi

modules will still be available.2.0 of the PlanNotadd 2.0 will be developed based on Nodejs, while providing features and features that are not available in 1.0.Why the NodeJS? Performance: In IO-intensive operations, NodeJS can easily implement 5W concurrency with asynchronous non-blocking mechanisms, while Laravel is only 200. Convenience: NodeJS can easily install the extension, and PHP needs to pecl or phpize even recompile, which is not familiar with the environment of the dep

(ERR)Throwerr; Console.log (' Selected after inserted '); for(varI= 0,usr;usr=rows[i++];) {console.log (' User nae= ' +usr.name + ', password= ' +Usr.password); } console.log (' \ n '); }); Connection.query (' Update users set password= ' DDD ' where name= ' Zhangsan ', {password: ' PPP '},function(err, result) {if(ERR)Throwerr; Console.log (' Updated zhangsan\ ' s password to DDD '); Console.log (result); Console.log (' \ n '); }); Connection.query (' SELECT * from users ',function(Err,

++];) {console.log (' user nae= ' +usr.name + ', password= ' +usr.password); } console.log (' \ n '); }); Connection.query (' Delete from users where name= ' Zhangsan ', {password: ' PPP '}, function (err, result) {if (err) throw Err Console.log (' deleted Zhangsan '); Console.log (result); Console.log (' \ n '); }); Connection.query (' select * from the users ', function (err, rows, fields) {if (err) throw err; Console.log (' selected after deleted '); for (var i= 0,

Asp.net, C # version: /// /// Check whether all Chinese characters exist/// /// /// Public bool ishaschzn (string inputtext){System. Text. regularexpressions. RegEx regxs = new system. Text. regularexpressions. RegEx ("^ [\ u4e00-\ u9fa5] | [\ ufe30-\ uffa0] $ ");Return regxs. ismatch (inputtext );} /// /// Check for Chinese Characters/// /// /// Public bool isha

install curl After installing curl, you must install all the packages required by Node. js. There are multiple methods to install Node. js. The simplest method is to execute: # sudo apt-get install Nodejs However, the latest Node. js