In Node.js, using while(true) will block the event loop indefinitely, causing the application to hang. This is because Node.js is single-threaded and relies on an event loop to handle asynchronous tasks. Long-running synchronous code like while(true) can prevent other tasks from being executed.

When implementing a function that acts differently based on input types using a switch statement, it's best practice to use separate case statements for each data type. This ensures clarity and maintainability of your code, as each case can handle the specific behavior for that data type. Using a single case statement with type conversion is less readable and may lead to unexpected behavior. Individual functions for each type would increase code complexity unnecessarily, and using an if-else ladder is less efficient and less idiomatic in JavaScript.

The correct method to replace an HTML element with another in JavaScript is replaceChild(). This method allows you to replace a child element within a parent element. It takes two arguments: the new element to be inserted and the old element to be replaced.

The "else" statement is used to specify a block of code to be executed if the condition specified in the preceding "if" statement is false. It allows for conditional execution, and if the "if" condition is not met, the code inside "else" will be executed.

In JavaScript, you can create a subclass by using the extends keyword. This allows you to inherit the properties and methods of another class, forming a class hierarchy. The extends keyword establishes a relationship between the subclass and the superclass.

The primary use of the switch statement in JavaScript is to perform conditional branching. It allows you to execute different code blocks based on the value of an expression, making it a powerful tool for decision-making in your code.

The correct method to parse a JSON string into a JavaScript object is JSON.parse(). It takes a JSON string as input and returns a JavaScript object. The other options (toJSON(), parseJSON(), stringToJSON()) are not valid JSON parsing methods.

An Async function returns a promise implicitly. When you declare a function as async, it means the function will always return a promise, allowing you to use await inside it to handle asynchronous operations more cleanly.

When an event listener is invoked, it receives an event object containing information about the event. It also has access to the target (the element that triggered the event) and type (the type of event). However, timestamp is not an argument passed to an event listener. It can be obtained using event.timeStamp.

The this keyword inside a constructor function refers to the current instance of the object being created. It allows you to access and assign properties and methods to the instance being constructed, making it unique for each object created with the constructor. It does not refer to the global or parent object.

To add a new property to an existing object in JavaScript, you would typically use the Object.assign() method. This method allows you to merge properties from one or more source objects into a target object. It can be used to add or update properties in the target object.

When using the new keyword to create an object, you must use a Constructor Function. Constructor functions are used to create and initialize objects. They are invoked with the new keyword and often set object properties and methods within the constructor. Arrow functions are not suitable because they don't have their own this context.