Why you should not use innerHTML in JavaScript?
innerHTML content is refreshed every time and thus is slower. There is no scope for validation in innerHTML. Therefore, it is easier to insert rogue code in the document and…
What are the decodeURI() and encodeURI()?
EncodeURl() is used to convert URL into their hex coding. And DecodeURI() is used to convert the encoded URL back to normal. <script> var uri="my test.asp?name=ståle&car=saab"; document.write(encodeURI(uri)+ "<br>"); document.write(decodeURI(uri)); </script>…
What is unescape() and escape() functions?
The escape () function is responsible for coding a string to transfer the information from one computer to the other across a network. For Example: <script> document.write(escape("Hello? How are you!"));…
What is the unshift() method?
This method is functional at the starting of the array, unlike the push(). It adds the desired number of elements to the top of an array. For example – var…
What are Screen objects?
Screen objects are used to read the information from the client’s screen. The properties of screen objects are – AvailHeight: Gives the height of the client’s screen AvailWidth: Gives the…
Write about the errors shown in JavaScript?
JavaScript gives a message as if it encounters an error. The recognized errors are – Load-time errors: The errors shown at the time of the page loading are counted under Load-time…
What are the various functional components in JavaScript?
The different functional components in JavaScript are- First-class functions: Functions in JavaScript are utilized as first-class objects. This usually means that these functions can be passed as arguments to other functions,…
What is the role of deferred scripts in JavaScript?
The HTML code’s parsing during page loading is paused by default until the script has not stopped executing. If the server is slow or the script is particularly heavy, then…
How are event handlers utilized in JavaScript?
Events are the actions that result from activities, such as clicking a link or filling a form by the user. An event handler is required to manage the proper execution…
How are DOM utilized in JavaScript?
DOM stands for Document Object Model and is responsible for how various objects in a document interact with each other. DOM is required for developing web pages, which includes objects…