node js console debug

Coder Compare preferences Debug, Debug node More trouble, we rely on the tall tool webstorm (I use 10) to debug node, configuration is relatively simple, direct:First, configure the node environment, select "Edit/configuration" in

file is index. js, and index. js will be loaded. If index. js does not exist, loading will fail. Assume that the directory structure is as follows: Package. json is defined as follows: Copy codeThe Code is as follows:{"Name": "pack ","Main": "modA. js"} At this time, require ('./folder') will return the modA.

);});});}). listen (0, 8080 ); Dbutil. js Var mysql = require ('mysql'); // import mysql Module var pool = mysql. createPool ({host: '2017. 168.140.237 ', user: 'root', password: '000000', database: 'command3g'}); // query the SQL statement function query (strSQL, param, callback) {pool. getConnection (function (err, connection) {connection. query (strSQL, param, function (err, rows, fields) {if (err) throw err; callback (rows, fields); connection. e

organize the front-end code and load NPM modules. In the browser, call the Browserify compiled code, also written in the The operation of Browserify is divided into 3 steps. 1. Write node program or module, 2. Pre-compiled with browserify into Bundle.js, 3. Load the bundle.js in the HTML page. 2. Command-line programming tool: Commander The commander is a lightweight Nodejs module that provides user command line input and parameter parsing power. Co

This article mainly introduces Node. for details about js file operations, this article describes how to process file paths and how to use and introduce the fs module in detail. For details, refer to a set of data flow APIs on Node, it is convenient to process files like network streams, but it only allows sequential processing of files and does not allow random

chapter, the grandmother finds out his conscience and writes a callback function again.By convention, we should first write the framework: The Code is as follows:# Include Using namespace v8; Handle RunCallback (const Arguments args) { HandleScope scope; //...Return scope. Close (Undefined ());}Then we decided on its usage as follows:Func (function (msg ){Console. log (msg );});That is, it will input a parameter to the

Node. js entry-create a project and explain it in detail. node. js entry-level After thinking for a long time, I always want to write something that is helpful to everyone. Today I will explain how to generate a project. At present, the market generally requires a full stack of people ----- mean (mongo, express, angula

configure, just run node-gyp build directly.Nodejs usageCreate an index. js and see how to use this module: The Code is as follows:Var sleep = require ('./build/Release/hello. node'). sleep;Console. log (new Date );Sleep (1000 );Console. log (new Date );// Result// Wed Mar

This article mainly introduces node. buffer in js. buffer. description of the isEncoding method. This article introduces the buffer. buffer. isEncoding method description, syntax, receive parameters, use instances, and implementation source code. For more information, see Method description: Checks whether it is a valid encoding parameter and returns true or false. Syntax: The Code is as follows: Buffer.

This article mainly introduces Node in Linux. the method for configuring MySQL or Oracle databases in js programs. By default, the Node environment has been assembled and we can use the npm package management tool for configuration. For more information, see Mysql usageInstall the mysql module: Run the command in the cmd command line of the installation root dire

Node. js network communication module implementation analysis, node. js Network Communication Preface Presumably, we should use Node. js most to create http services. Therefore, for every Web Development Engineer,

This article mainly introduces Node. examples of simple web page capturing functions implemented by js. This article uses libraries such as PhantomJS and node-phantomjs to implement these functions. For more information, see the following: web page capturing is a well-known technology, however, there are still a lot of complexities. Simple Web crawlers are still

user_info VALUES (NULL, 'Zhang Yi'), (NULL, 'Zhang 2'), (NULL, 'Zhang San '); 3. create a stored procedure (writing is redundant, deliberately... Just learn the syntax >_ The code is as follows: DELIMITER $Drop procedure if exists 'test'. 'proc _ simple' $Create procedure proc_simple (IN uid INT (10), OUT uName VARCHAR (2), OUT totalCount INT)BEGIN DECLARE str_name VARCHAR (20 ); SET @ str_name = '';SET totalCount = 0;Select count (1), userName INTO totalCount, @ str_name FROM user_info

This article describes how to implement routing in node. js. As the name suggests, routing means that we have different processing methods for different URLs. This article will teach you how to implement routing in node. js. to implement the routing function in js, you can r

This article mainly introduces Node. the general module Encapsulation Method in js. For the encapsulation method, see Underscore. js implementation. For more information, see Node. the module loading and execution are encapsulated in js, so that the variables in the module F

configure, just run node-gyp build directly.Nodejs usageCreate an index. js and see how to use this module: The code is as follows:Var sleep = require ('./build/Release/hello. node'). sleep;Console. log (new Date );Sleep (1000 );Console. log (new Date );// Result// Wed Mar

Introduction to the use of _ dirname in Node. js, node. js _ dirname Preface This article mainly introduces the use of _ dirname in Node. js for your reference. Let's take a look at the details below: The method is as follows:

This article mainly introduces node. in js, You Can format numbers to add thousands of characters. This article provides three implementation methods and provides the instance Code respectively. For more information, see the processing method separated by commas (,). Regular Expression mode: The Code is as follows: "15000000 ". split (""). reverse (). join (""). replace (/(\ d {3})/g, "$1 ,"). split ("").

This article mainly introduces node. buffer in js. the usage of the copy method. This article introduces the buffer. copy method description, syntax, receive parameters, use instances, and implement Source Code. For more information, see Method description: Replace the buffer. Copy data from the source buffer and replace it with the specified location of the target buffer. Syntax: The Code is as f

This article mainly introduces Custom Event instances in node. js. A simple example. For more information, see the EventEmitter that inherits events, then you can register the event through the on; emit triggers the event and removeListener removes the event. A simple example is as follows: Var util = require ('util'); var Et = require ('events '). eventEmitter; function Ticker () {var self = this; s