node js monitoring tools

this can be very painful, so we will add the routing module loosely using dependency injection .First, let's extend the server's start () function to pass the route function as a parameter, and theserver.js file code is as followsvarHTTP = require ("http");varurl = require ("URL"); function Start (route) {function onrequest (request, response) {varpathname =Url.parse (request.url). Pathname; Console.log ("Request for"+ Pathname +"received."); Route (pathname); Response.writehead ( $, {"Cont

node. JS Common ToolsUtil is a node. JS Core module that provides a collection of commonly used functions to compensate for the lack of the functionality of core JavaScript too thinly.Util.inheritsUtil.inherits (constructor, Superconstructor) is a function that implements prototype inheritance between objects.The objec

Util is a node. JS Core module that provides a collection of commonly used functions to compensate for the lack of the functionality of core JavaScript too thinly. Util.inheritsUtil.inherits (constructor, Superconstructor) is a function that implements prototype inheritance between objects.The object-oriented nature of JavaScript is prototype-based and differs from common class-based ones. JavaScript

press Ctrl+pGet:Enter its path or key character, sublime text can be positioned, and will provide a preview, convenient choice.Integrated development Environment WebstormCreate a project and select the node. JS Express App ProjectDepending on the source code package for node. js, you can use the address provided by it

for opening files in asynchronous mode:Fs.open (path, flags[, mode], callback)Get file informationFs.stat (Path, callback)Write fileFs.writefile (file, data[, Options], callback)Read fileFs.read (fd, buffer, offset, length, position, callback)Close FileFs.close (FD, callback)Intercepting filesFs.ftruncate (FD, Len, callback)deleting filesFs.unlink (Path, callback)Create a DirectoryFs.mkdir (path[, mode], callback)Read DirectoryFs.readdir (Path, callback)Delete DirectoryFs.rmdir (Path, callback)

node. JS Common ToolsUtil is a node. JS Core module that provides a collection of commonly used functions to compensate for the lack of the functionality of core JavaScript too thinly.Util.inheritsUtil.inherits (constructor, Superconstructor) is a function that implements prototype inheritance between objects.The objec

(writablestream) reads data from Readablestream and sends it to Writablestream. When writablestream.write (data) returns false,readablestream pauses until writablestream occurs Drain event. Callback has an error as its only parameter and is called when the Writablestream is closed or when an error occurs. Util.inherits (constructor, Superconstructor)inherit a method from a prototype to another constructor from one of the constructor functions. The constructor prototype will be set to a new

Util is a node. JS Core module that provides a collection of commonly used functions to compensate for the lack of the core Javascript functionality too thin.Util.inherits (constructor, Superconstructor)A function that implements prototype inheritance between objects, and the first constructor inherits the method of the prototype from the second constructorThe object-oriented nature of JavaScript is prototy

4.1 Core modules and file modules/574.2 Accessing members within modules from outside the module/584.2.1 using Exports object/584.2.2 defines a module as a class/584.2.3 Defining class variables or class functions for a module class/614.3 Organization and Management module/614.3.1 loading modules from the Node_modules directory/614.3.2 using directories to manage modules/624.3.3 loading modules from the global catalog/624.4 Properties of the module object/634.5 Packages with NPM package manageme

corresponding document, the default option is--help.Implementation of Vue-init Sub-commandThe main function of Vue-init is to pull the project template file (official or homemade) under the specified git directory into the specified directory, using the following$ vue init 　　There is still a need to parse the PROCESS.ARGV, so the commander.js is introduced in Vue-init, which generates a programProgram . Usage (' 　　Next is to implement the pull template file, after processing, placed in the o

discussed later. )the way to avoid breaking the process when an exception is thrown is to pass the exception using callbacks (rather than throwing them, as in other environments). Even if some unhandled exceptions block the program, there are still a number of solutions that can be used to monitor the Node process to perform the necessary post-crash recovery efforts (although you will not be able to restore the user's Session), most commonly using th

-node. JS integration is not high, node. JS is installed, and NPM tools are installed.Now node. JS installation is a wizard, I am based on the node