One of my friends asked me what is Node and also how do you install and test to make sure it is working.<\/p>\n
Well, Node<\/a> is in essence a javascript server side environment that allows you to write code that will allow the event model to handle requests very quickly since it does not handle the I\/O (well almost of all of the functions within node do not!) so there is no-blocking of code.<\/p>\n Node has a very quick and capable http class that allows for the user to create a server that is capable of doing some very quick responses to multiple connections. <\/p>\n To install Node you just need to do this in ubuntu <\/p>\n the first line allows you to be the root and thus the next commands are as the user root.<\/p>\n Or if you are using windows just download the executable from here<\/a><\/p>\n To test the node to make sure it is working with a basic “Hello world!” example if you save this below as helloworld.js.<\/p>\n I am using a higher number than 1024 for the port because below that you need to be a root user or administrator on windows to allow anything to connect to those port numbers. <\/p>\n So if you now run the program with the javascript file above as the second parameter<\/p>\n and then if you open your browser at 127.0.0.1:8080 then you will see <\/p>\n Hello world!<\/p>\n","protected":false},"excerpt":{"rendered":" One of my friends asked me what is Node and also how do you install and test to make sure it is working. Well, Node is in essence a javascript server side environment that allows you to write code that will allow the event model to handle requests very quickly since it does not handle … Continue reading Node – install and test<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[37,38],"tags":[385],"class_list":["post-1752","post","type-post","status-publish","format-standard","hentry","category-linux_install_configure","category-windows_install_configure","tag-node"],"_links":{"self":[{"href":"https:\/\/www.codingfriends.com\/index.php\/wp-json\/wp\/v2\/posts\/1752","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.codingfriends.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.codingfriends.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.codingfriends.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.codingfriends.com\/index.php\/wp-json\/wp\/v2\/comments?post=1752"}],"version-history":[{"count":4,"href":"https:\/\/www.codingfriends.com\/index.php\/wp-json\/wp\/v2\/posts\/1752\/revisions"}],"predecessor-version":[{"id":1756,"href":"https:\/\/www.codingfriends.com\/index.php\/wp-json\/wp\/v2\/posts\/1752\/revisions\/1756"}],"wp:attachment":[{"href":"https:\/\/www.codingfriends.com\/index.php\/wp-json\/wp\/v2\/media?parent=1752"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.codingfriends.com\/index.php\/wp-json\/wp\/v2\/categories?post=1752"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.codingfriends.com\/index.php\/wp-json\/wp\/v2\/tags?post=1752"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}\r\nsudo -s\r\napt-get install python-software-properties\r\nadd-apt-repository ppa:chris-lea\/node.js\r\napt-get update\r\napt-get install nodejs\r\nexit\r\n<\/pre>\n
\r\nvar http = require(\"http\");\r\n\/\/ create the http server function req'uest, res'ult\r\nhttp.createServer(function (req, res) \r\n{\r\n \/\/ 200 = means http response code of found page, then a array of the content type\r\n res.writeHead(200, {'Content-Type' : 'text\/plain'});\r\n res.end('Hello world!'); \/\/ write out the text\r\n}).listen(8080,'127.0.0.1');\r\n\/\/ listen on port 8080 on the ip address 127.0.0.1\r\nconsole.log('We have started, check your browser on http:\/\/127.0.0.1:8080\/');\r\n<\/pre>\n\r\nnode helloworld.js\r\n<\/pre>\n