Node.js os.uptime() Method - GeeksforGeeks (2024)

Node.js Http2ServerRequest.method Method

The Http2ServerRequest.method is an inbuilt application programming interface of class Http2ServerRequest within the http2 module which is used to get the string representation of the request method. Syntax: const request.method Parameters: This method does not accept any argument as a parameter. Return Value: This method returns the string represe

Node.js http.IncomingMessage.method Method

The http.IncomingMessage.method is an inbuilt application programming interface of class Incoming Message within the inbuilt http module which is used to get the type of request method as a string. Syntax: request.method Parameters: This method does not accept any argument as a parameter. Return Value: This method returns the request type name as a

Node.js Automatic restart Node.js server with nodemon

We generally type following command for starting NodeJs server: node server.js In this case, if we make any changes to the project then we will have to restart the server by killing it using CTRL+C and then typing the same command again. node server.js It is a very hectic task for the development process. Nodemon is a package for handling this rest

Top 3 Best Packages Of Node.js that you should try being a Node.js Developer

Node.js is an open-source and server-side platform built on Google Chrome's JavaScript Engine (V8 Engine). Node.js has its own package manager called NPM( Node Package Manager) which has very useful and incredible libraries and frameworks that makes our life easier as a developer to work with Node.js. The 3 Best Packages of Node.js that you should

Node.js Connect Mysql with Node app

Node.js is a powerful platform for building server-side applications, and MySQL is a widely used relational database. Connecting these two can enable developers to build robust, data-driven applications. In this article, we'll explore how to connect a Node.js application with a MySQL database, covering the necessary setup, configuration, and basic

How to resolve 'node' is not recognized as an internal or external command error after installing Node.js ?

Encountering the error message ‘node’ is not recognized as an internal or external command after installing Node.js can be frustrating, especially when you’re eager to start working on your project. This error usually means that your system cannot find the Node.js executable because the path to it is not set correctly in your system's environment v

Javascript Program For Swapping Kth Node From Beginning With Kth Node From End In A Linked List

Given a singly linked list, swap kth node from beginning with kth node from end. Swapping of data is not allowed, only pointers should be changed. This requirement may be logical in many situations where the linked list data part is huge (For example student details line Name, RollNo, Address, ..etc). The pointers are always fixed (4 bytes for most

Javascript Program For Inserting A Node After The N-th Node From The End

Insert a node x after the nth node from the end in the given singly linked list. It is guaranteed that the list contains the nth node from the end. Also 1 <= n. Examples: Input : list: 1->3->4->5 n = 4, x = 2 Output : 1->2->3->4->5 4th node from the end is 1 and insertion has been done after this node. Input : list: 10->8

Node.js URLSearchParams.has() Method

In URLSearchParams interface, the has() method returns a Boolean which tells us that if the parameter with input name exists it will return true, else false. Syntax: var Bool = URLSearchParams.has(name) Returns: True - if name present, else it will return False. Parameters: name - Input the name of the parameter. Example1: let url = new URL('https:

Node.js hmac.update() Method

The hmac.update() method is an inbuilt method of class HMAC within the crypto module which is used to update the data of hmac object. Syntax: hmac.update(data[, inputEncoding])Parameters: This method takes the following two parameters: data: It can be of string, Buffer, TypedArray, or DataView type. It is the data that is passed to this function.in

Node.js process.send() Method

The process.send() method is an inbuilt application programming interface of the process module which is used by the child process to communicate with the parent process. This method does not work for the root process because it does not have any parent process. Syntax: process.send(message, [sendHandle])Parameters: This method accepts the followin

Node.js writeStream.clearLine() Method

The writeStream.clearLine() is an inbuilt application programming interface of class WriteStream within the module which is used to clear the current line of this write stream object. Syntax: writeStream.clearLine(dir[, callback]) Parameters: This method takes the following argument as a parameter: dir: Integer value defining the selection of a lin

Node.js net.SocketAddress() Method

Node.js Net module allows you to create TCP or IPC servers and clients. A TCP client initiates a connection request to a TCP server to establish a connection with the server. Syntax: Below is the syntax for importing the Net module into your node js project: const <Variable_Name> = require('node:net'); const Net_Module = require('node:net');

Node.js fs.link() Method

The fs.link() method is used to create a hard link to the given path. The hard link created would still point to the same file even if the file is renamed. The hard links also contain the actual contents of the linked file. Syntax: fs.link( existingPath, newPath, callback ) Parameters: This method accepts three parameters as mentioned above and des

Run Python script from Node.js using child process spawn() method

Node.js is one of the most adopted web development technologies but it lacks support for machine learning, deep learning and artificial intelligence libraries. Luckily, Python supports all these and many more other features. Django Framework for Python can utilize this functionality of Python and can provide support for building new age web applica

Node.js date-and-time Date.isLeapYear() Method

The date-and-time.Date.isLeapYear() is a minimalist collection of functions for manipulating JS date and time module which is used to check if the given year is a leap year or not. Required Module: Install the module by npm or used it locally. By using npm: npm install date-and-time --save By using CDN link: <script src="/path/to/date-and-time.m

Node.js Http2ServerRequest.httpVersion Method

The Http2ServerRequest.httpVersion is an inbuilt application programming interface of class Http2ServerRequest within the http2 module which is used to get the HTTP version either associated with server or client. Syntax: const request.httpVersion Parameters: This method does not accept any argument as a parameter. Return Value: This method returns

Node.js hmac.digest() Method

The hmac.digest() method is an inbuilt application programming interface of class hmac within crypto module which is used to return the hmac hash value of inputted data. Syntax: hmac.digest([encoding])Parameter: This method takes encoding as a parameter which is an optional parameter. Return Value: This method calculates the hmac digest of all data

Node.js v8.Serializer.writeDouble() Method

The v8.Serializer.writeDouble() method is an inbuilt application programming interface of the v8.Serializer module which is used to write a JS number value to the internal buffer. For use inside of custom serializer._writeHostObject(). Syntax: v8.Serializer.writeDouble( Value ); Parameters: This method accepts single parameter as mentioned above an

Node.js v8.Serializer.writeRawBytes() Method

The v8.Serializer.writeRawBytes() method is an inbuilt application programming interface of the v8.Serializer module which is used to write a raw buffer data to the internal buffer. For use inside of custom serializer._writeHostObject(). Syntax: v8.Serializer.writeRawBytes( Buffer ); Parameters: This method accepts single parameter as mentioned abo

Node.js v8.Deserializer.readHeader() Method

The v8.Deserializer.readHeader() method is an inbuilt application programming interface of the v8.Deserializer module which is used to read the header and validate it, to ensure that contains a valid serialization format version. Syntax: v8.Deserializer.readHeader(); Parameters: This method does not accept any parameters. Return Value: This method

Node.js v8.Deserializer.readValue() Method

The v8.Deserializer.readValue() method is an inbuilt application programming interface of the v8.Deserializer module which is used to read the JS value from serialized data as present in a buffer. Syntax: v8.Deserializer.readValue(); Parameters: This method does not accept any parameters. Return Value: This method reads JS value from serialized rep

Node.js Buffer.readUInt16LE() Method

The Buffer.readUInt16LE() method is an inbuilt application programming interface of class Buffer within Buffer module which is used to read an unsigned 16-bit integer from buffer at the specified offset with specified little endian format. Syntax: Buffer.readUInt16LE( offset ) Parameters: This method accepts single parameter offset which denotes th

Node.js verify.update(data[, inputEncoding]) Method

The verify.update() method is an inbuilt method in verify class within the crypto module in NodeJs. This method verifies the content within the given data. When the input encoding parameter is not specified and it detects that the data is a string, the 'utf8' encoding is used. However, if the data is the type of Buffer, TypedArray or DataView, then

HTML DOM Node isSupported() Method

The isSupported() method in HTML DOM is used to check the specified feature is supported by the specified node or not. This method is not supported by many browsers. It returns true if the feature is supported else it returns false. Syntax: node.isSupported(feature, version) Note: This method has been DEPRECATED and is no longer recommended. Parame

Node.js vm.runInThisContext() Method

The vm.runInThisContext() method compiles the code, runs it inside the context of the current global and then returns the output. Moreover, the running code has no access to the local scope, but have access to the current global object. Syntax: vm.runInThisContext( code, options ) Parameters: This method accept two parameters as mentioned above and

Node.js Buffer.readUInt32BE() Method

The Buffer.readUInt32BE() method is an inbuilt application programming interface of class Buffer within the Buffer module which is used to read 32-bit value from an allocated buffer at a specified offset. Syntax: Buffer.readUInt32BE( offset ) Parameters: This method accept single parameter offset which specifies the number of bytes to skip before r

Node.js Http2ServerResponse.setTimeout() Method

The Http2ServerResponse.setTimeout() is an inbuilt application programming interface of the class Http2ServerResponse within the http2 module which is used to set the duration for a time after which a particular action will take place. Syntax: const response.response.setTimeout(msecs[, callback]) Parameters: This method takes the integer value of d

Node.js util.debuglog() Method

The “util” module provides ‘utility’ functions that are used for debugging purposes. For accessing those functions we need to call them (by ‘require(‘util’)‘). The util.debuglog() (Added in v0.11.3) method is an inbuilt application programming interface of the util module which is used to create a function that is based on the NODE_DEBUG environmen