To exit a Node.js application, you can use the process.exit() method. This method takes an optional exit code as a parameter and terminates the Node.js process.

When an application is run through the command-line interface (CLI) of an operating system, the Command-line arguments are used to pass additional information to a program . In Node.js, all command-line arguments received by the shell are given to the process in an array called argv(arguments-values)&pe

In JavaScript, null and undefined are both special values that represent the absence of a value, but they are different in their meaning and behavior.

In JavaScript, "let" and "var" are used to declare variables, but they differ in their scoping and hoisting behavior. Let us see the difference between let and var with example.

Both call and apply are methods in JavaScript that can be used to invoke a function with a specified this value and a list of arguments. However, they differ in how they pass arguments to the function.

Use the built-in fs module in NodeJS to read the contents of the text file. This can be done using the fs.readFileSync() method, which returns the contents of the file as a string.

In JavaScript, there are multiple ways to deep clone an object. Using JSON.parse() and JSON.stringify(): This method involves converting the object to a JSON string using JSON.stringify(), and then parsing the string back to an object using JSON.parse()&per