Q981. What is the role of the Window object in the DOM?
The Window object in the DOM represents the browser window or tab that displays the web page. It provides methods and properties for controlling and manipulating the brow...
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Q982. What is a DOM node in JavaScript?
A node in the DOM is a fundamental unit that represents an element, attribute, or text content in a web page. Every node has a relationship with other nodes, such as a pa...
Q983. How do you prevent default behavior of an event in the DOM using JavaScript?
To prevent the default behavior of an event in the DOM using JavaScript, you can use the preventDefault() method. This method is called on the event object that is passed...
Q984. What is event propagation?
Event propagation in the DOM refers to how events move or flow through different elements on a webpage. When an event happens on an element, like a click, it can travel t...
Q985. What is call stack in JavaScript?
The call stack in JavaScript is a data structure that stores information about the currently executing functions. When a function is called, a new frame is added to the t...
Q986. What is an event loop?
The event loop in JavaScript handles asynchronous operations by queuing them up and processing them one by one in a non-blocking way. It checks the event queue continuous...
Q987. What is the use of `setTimeOut()` in JavaScript?
`setTimeout()` is a built-in function in JavaScript that allows you to schedule a function to be executed after a specified amount of time has elapsed.
Q988. What is the use of `setInterval()` in JavaScript?
`setInterval()` is a function in JavaScript that allows you to repeatedly execute a given function at a specified interval. It works by calling the function repeatedly wi...
Q989. What is a JavaScript object?
JavaScript object is a non-primitive data-type that allows you to store multiple collections of data. It is a container of key-value pairs in which value may be a variabl...
Q990. What is the difference between dot notation and bracket notation when accessing properties of an object?
Dot Notation only allows static keys while Bracket Notation accepts dynamic keys. Static key here means that the key is typed directly, while Dynamic key here means that ...