In Internet Explorer, the attachEvent() method is used to attach event listeners. This method is specific to Internet Explorer and serves a similar purpose to addEventListener() in other browsers, allowing you to respond to events such as clicks and keypresses.

If you use arrow functions to define methods within a class, they will not have their own this context. Instead, they inherit the this context from the surrounding scope. To access the class instance within an arrow function, you need to use this. Hence, the correct option is this.

You can prematurely terminate a while loop using the break statement. When a break statement is encountered within the loop, it exits the loop prematurely, regardless of whether the loop's condition is still true. This is useful for stopping the loop when a specific condition is met.

It’s possible to create a switch-like behavior using object literals and the hasOwnProperty() method in JavaScript. By defining properties in an object literal and then checking if a specific property exists using hasOwnProperty(), you can achieve similar branching behavior as a switch statement.

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.

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.

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.

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.

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 "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.