CAKEphp, Node.js, MongoDB, how to solve it
CAKEphp, Node.js, MongoDBThe three technologies of CAKEphp, Node.js and MongoDB As a beginner, I hope you can share with me some good learning websites or books, thank you! node.js Share to: ——Solution——————– Quote: Download the mongoDB installation package on WindowsXP? It can be downloaded from its official website. If it supports XP, it can be installed as a service or started using a command. Document: http://docs.mongodb.org/manual/tutorial/install-mongodb-on-windows/ Step by step, very simple. ——Solution——————–Learn and help Top…
CAKEphp, Node.js, MongoDB, how to deal with it
CAKEphp, Node.js, MongoDBThe three technologies of CAKEphp, Node.js and MongoDB As a beginner, I hope you can share with me some good learning websites or books, thank you! ——Solution——————– Quote: Download the mongoDB installation package on WindowsXP? It can be downloaded from its official website. If it supports XP, it can be installed as a service or started using a command. Document: http://docs.mongodb.org/manual/tutorial/install-mongodb-on-windows/ Step by step, very simple. ——Solution——————–Learn and help Top…
A first look at Node.js performance – computing performance (Qt/C++, Golang, Node.js)
Everyone knows that the single-process non-blocking model of Node.js is suitable for task-intensive (I/O) rather than calculation-intensive. So how unsuitable is it for calculation? Let’s do a simple test. The test hardware platform is as follows: Computer model Apple Macmini6,2 Lunch Box Operating system Windows 8 Enterprise 64-bit (DirectX 11) Processor Intel 3rd Generation Core i7-3615QM @ 2.30GHz Quad Core Memory 16 GB (Samsung DDR3 1600MHz) Main hard drive APPLE HDD HTS541010A9E662 (1 TB) software platform: Node.js 0.10.21 Qt5.2 beta1 Golang 1.2 R3 Test Methods: Calculate Fibonacci 8 times for each pass. Calculate the total time for a total of 10 passes (80 times in total). Node.js does not use the cluster module. The test code is as follows: [Javascript] function fibo (n) { Return n > 1 ? fibo(n – 1) + fibo(n – 2) : 1; } var n = 8; function back(){ if(!–n) { return console.timeEnd('total time'); }…
CAKEphp, Node.js, MongoDB
node.js CAKEphp, Node.js, MongoDB? Three? Technology? Beginner, I hope you can share with me some good learning websites or books, thank you! Reply to discussion (solution) Documents from respective official websites are the best Download the mongoDB installation package on WindowsXP? Download the mongoDB installation package on WindowsXP? It can be downloaded from its official website. If it supports XP, it can be installed as a service or started using a command. Document: http://docs.mongodb.org/manual/tutorial/install-mongodb-on-windows/ Step by step, very simple.
A small chestnut comparing the performance of golang, php, Node.js, Python and Rust
After seeing the comparison by netizen toozyxia (https://my.oschina.net/xiayongsheng/blog/4775399), I suddenly had the idea to add the comparison of Node.js golang: package main import ( “fmt” “os” “reflect” “runtime/pprof” “runtime/trace” “strconv” “time” “unsafe” ) type CalcCollection struct { } func (c *CalcCollection) V0() { arr := map[string]int64{} for i := int64(0); i <1000000; i++ { value := time.Now().Unix() key : = strconv.FormatInt(i, 10) + "_" + strconv.FormatInt(value, 10) arr[key] = value } } func (c *CalcCollection) V1() { nums := int64(1000000) arr := make(map[string]int64, nums) // key, put it outside the loop, you can reuse key := make([]byte, 0) for i := int64(0); i <nums; i++ { key = key [:0] value := time.Now().Unix() // Use appendInt instead to remove the overhead of converting []byte to string inside strconv key = strconv.AppendInt(key, i, 10) key = append(key, '_') key = strconv.AppendInt(key, value, 10) keyStr := string(key) arr[keyStr] = value } } func (c *CalcCollection) V2() { nums := int64(1000000) arr : = make(map[string]int64, nums) // Calculate the key length and apply to save []byte of all keys keyLen := int64(len(strconv.FormatInt(nums, 10)) + 1 + 10) totalLen := keyLen * nums key := make([]byte, totalLen) for i := int64(0); i <nums; i++…
The learning process of developing a role voting application using React, Node.js, MongoDB, and Socket.IO (3)
These articles are all originally published by me Address on segmentfault: https://segmentfault.com/a/1190000005040834 Suddenly I remembered that my blog has been neglected for many years, and it’s time to update it, haha Part 1 The learning process of developing a role voting application using React, Node.js, MongoDB, and Socket.IO (1) The learning process of developing a role voting application using React, Node.js, MongoDB, and Socket.IO ( 2) Original text step 13, Express API routing The first route is used to create roles app.post(‘/api/characters’,(req,res,next) => { let gender = req.body .gender; let characterName = req.body .name; let characterIdLookupUrl = ‘https://api.eveonline.com/eve/CharacterId. xml.aspx?names=’ + characterName; const parser = new xml2js.Parser(); async.waterfall([ function(callback) { request.get(characterIdLookupUrl,(err,request,xml) => { if(err) return next(err); parser.parseString(xml,(err,parsedXml) => { try { let characterId = parsedXml.eveapi .result[0].rowset[0].row[0]. $.characterID; app.models.character. findOne({ characterId: characterId},(err,model) => { if(err) return next(err); if(model) { return res.status(400 ).send({ message: model.name + ‘ is alread in the database’}); } callback(err,characterId); }); } catch(e) { return res.status(400 ).send({ message: ‘ xml Parse Error’}); } }); }); }, function(characterId) ; let inverted = _.invert (raceCount); let topRace = inverted[max]; let topCount = raceCount[topRace]; callback(err,{race : topRace, count: topCount}); }); }); asyncTask.push(callback => { app.models.character. find() .sort(‘wins desc’) .limit(100) .select(‘bloodline’) .exec((err,characters) =>…
The learning process of developing a character voting application using React, Node.js, MongoDB, and Socket.IO (3)
Part 1 The learning process of developing a role voting application using React, Node.js, MongoDB and Socket.IO (1)Using React, Node.js, MongoDB , The learning process of developing a role voting application with Socket.IO (2) The thirteenth step of the original text, Express API routing The first route is used to create Character’s app.post(‘/api/characters’,(req,res,next) => { let gender = req.body.gender; let characterName = req.body.name; let characterIdLookupUrl = ‘https://api.eveonline.com/eve/CharacterId.xml.aspx?names=’ + characterName; const parser = new xml2js.Parser() ; async.waterfall([ function(callback) { request.get(characterIdLookupUrl,(err,request,xml) => { if(err) return next(err); parser.parseString(xml,(err,parsedXml) => { try { let characterId = parsedXml.eveapi.result[0].rowset[0].row[0].$.characterID; app.models.character.findOne({ characterId: characterId},(err,model) => { if(err) return next(err); if(model) { return res.status(400).send({ message: model.name + ‘ is alread in the database’}); } callback(err,characterId); }); } catch(e) { return res.status(400).send({ message: ‘ xml Parse Error’}); } }); }); }, function(characterId) { let characterInfoUrl = ‘https://api.eveonline.com/eve/CharacterInfo.xml.aspx?characterID=’ + characterId; console.log(characterInfoUrl); request.get({ url: characterInfoUrl },(err,request,xml) => { if(err) return next(err); parser.parseString(xml, (err,parsedXml) = > { if (err) return res.send(err); try{ let name = parsedXml.eveapi.result[0].characterName[0]; let race = parsedXml. eveapi.result[0].race[0]; let bloodline = parsedXml.eveapi.result[0].bloodline[0]; app.models.character.create({ characterId: characterId , name: name, race: race, bloodline: bloodline, gender: gender },(err,model) => { if(err) return next (err); res.send({ message: characterName + ‘ has been added successfully!’});…
node. js,PHP,JavascriptConfusion[duplicate]-Node.js,PHP,JavascriptConfusion[duplicate]
This question already has an answer here: This question already has an answer: What are the advantages of using Node.js vs PHP [duplicate] 1 answer What are the advantages of using nodes? An answer I am totally lost of what Node.js is all about so here’s my question: I have no idea which node. js is like this. My question is Is node.js a new language which can replace PHP or it is a language which can/only compliment/supplement PHP and other web languages to perform complex tasks? is a node. Is js a new language that can replace PHP, or is it a language that can only compliment/complement PHP and other web languages to perform complex tasks? 3 solutions #1 25 Node.js is server side Javascript environment based on chrome V8 Javascript engine. It enables you to write your server code in Javascript, instead of choosing one of the “traditional” web languages such as PHP, c#, python, ruby, perl etc. Using node.js and database such as mongodb you could write your web application completely in Javascript. Node. js is a server-side Javascript environment based on the chrome V8 Javascript engine. It allows you to write server code in Javascript instead…
CAKEphp, Node.js, MongoDB, how to solve it
CAKEphp, Node.js, MongoDBThe three technologies of CAKEphp, Node.js and MongoDB As a beginner, I hope you can share with me some good learning websites or books, thank you! node.js Share to: ——Solution——————– Quote: Download the mongoDB installation package on WindowsXP? It can be downloaded from its official website. If it supports XP, it can be installed as a service or started using a command. Document: http://docs.mongodb.org/manual/tutorial/install-mongodb-on-windows/ Step by step, very simple. ——Solution——————–Learn and help Top…
CAKEphp, Node.js, MongoDB, how to deal with it
CAKEphp, Node.js, MongoDBThe three technologies of CAKEphp, Node.js and MongoDB As a beginner, I hope you can share with me some good learning websites or books, thank you! ——Solution——————– Quote: Download the mongoDB installation package on WindowsXP? It can be downloaded from its official website. If it supports XP, it can be installed as a service or started using a command. Document: http://docs.mongodb.org/manual/tutorial/install-mongodb-on-windows/ Step by step, very simple. ——Solution——————–Learn and help Top…
