Whenever there is a need to interact with a file, it is recommended to first check whether the file exists or not. For example, if you’re trying to read or write on a file that doesn’t exist, you’ll be getting…
Node.js is a JavaScript runtime built upon the V8 engine that uses JavaScript for creating the server side. The server created using Node.js can interact with the operating system and file system. It can perform all types of non-blocking I/O…
Node.js has an event loop that takes care of the flow of execution of the tasks, and when a task gets executed it fires the corresponding event to perform a specific action. Creating a Node.js program using multiple events makes…
When we are developing an application, requires a lot of choices, choice of layout, choice of code editor, and choice of which technology to be used. The technologies used for creating the application decide the speed and efficiency of the…
Node.js is a cross-platform runtime environment used for creating server-side applications built on the google chrome V8 engine, making it perfect for creating fast and scalable applications. TypeScript is a programming language that was developed as a subset of JavaScript…
Variables are essential for storing values, creating functionalities, and building the application. When we use variables in an application, it is present in the code, right? The code is always associated with the application, and any user can see that…
Operator and operands are two keywords used in programming to perform multiple types of operation, this operation can be of different types such as addition, subtraction, multiplication, division, etc. The operands are the entity to which the operation is performed.…
A template engine is used for server-side rendering to inject the data into the HTML template. A template engine can contain multiple variables, these variable is then replaced with the value sent from the server, these values taking the place…
A variable is considered a container that can contain values of different types, these values can be numbers, characters, boolean, strings, etc. The value a container contains can access by its name and hence naming a variable is also an…
The scope is the most fundamental concept in programming, it defines the current context of a program, i.e., where the variables can be accessed. For Example, a variable defined inside a function can’t access outside it. So its scope is…