Node.js provides the facility to get process information such as process id, architecture, platform, version, release, uptime, upu usage etc. It can also be used to kill process, set uid, set groups, unmask etc.The process is a global object, an instance of EventEmitter, can be accessed from anywher
The Node.js applications generally face four types of errors: Standard JavaScript errors i.e. <EvalError>, <SyntaxError>, <RangeError>, <ReferenceError>, <TypeError>, <URIError> etc.
about strlwr()
Express.js Middleware are different types of functions that are invoked by the Express.js routing layer before the final request handler. As the name specified, Middleware appears in the middle between an initial request and final intended route. In stack, middleware functions are always invoked in the order in which they are added.
The polymorphism is a core concept of an object-oriented paradigm that provides a way to perform a single action in different forms.
GET and POST both are two common HTTP requests used for building REST API's. GET requests are used to send only limited amount of data because data is sent into header while POST requests are used to send large amount of data because data is sent in the body.
In JavaScript, classes are the special type of functions. We can define the class just like function declarations and function expressions.The JavaScript class contains various class members within a body including methods or constructor. The class is executed in strict mode.
strcmp() method :
Scaffolding is a technique that is supported by some MVC frameworks. It is mainly supported by the following frameworks:
The JavaScript provides static methods that belong to the class instead of an instance of that class. So, an instance is not required to call the static method. These methods are called directly on the class itself.
strlen() function explanation.
About strrev()
Node Package Manager provides two main functionalities:It provides online repositories for node.js packages/modules which are searchable on search.nodejs.org
Node.js Timer functions are global functions. You don't need to use require() function in order to use timer functions. Let's see the list of timer functions.
C String Concatenation: strcat() explanation:
An abstraction is a way of hiding the implementation details and showing only the functionality to the users. In other words, it ignores the irrelevant details and shows only the required one.
GET and POST both are two common HTTP requests used for building REST API's. POST requests are used to send large amount of data.
The term REPL stands for Read Eval Print and Loop. It specifies a computer environment like a window console or a Unix/Linux shell where you can enter the commands and the system responds with an output in an interactive mode.
The JavaScript inheritance is a mechanism that allows us to create new classes on the basis of already existing classes. It provides flexibility to the child class to reuse the methods and variables of a parent class.The JavaScript extends keyword is used to create a child class on the basis of a parent class. It facilitates child class to acquire all the properties and behavior of its parent class
The JavaScript Encapsulation is a process of binding the data (i.e. variables) with the functions acting on that data. It allows us to control the data and validate it. To achieve an encapsulation in JavaScript: Use var keyword to make data members privateUse setter methods to set the data and getter methods to get that data
Express.js Request and Response objects are the parameters of the callback function which is used in Express applications.
strcpy() function declaration.