Is VAR Required In JavaScript? 2 Answers. The var keyword is never “needed”. However if you don’t use it then the variable that you are declaring will be exposed in the global scope (i.e. as a property on the window object). Is VAR still used in JavaScript 2020? With var it’s still possible as JS
What Can JavaScript Do On The Client Side Of A Website? JavaScript is a text-based programming language used both on the client-side and server-side that allows you to make web pages interactive. Where HTML and CSS are languages that give structure and style to web pages, JavaScript gives web pages interactive elements that engage a
What Is The Difference Between Ajax And JavaScript? JavaScript performs client-side operations, while AJAX sends and retrieves information from a server. The use of JavaScript and AJAX together allows code to be executed on the client side machine without the need to send repeated requests for an entire page reload just because a request for
Are Comments Used To Hide JavaScript From Old Browsers? Text inside the comments is ignored by browsers and thus is not displayed on the webpage. … To end a comment, we use –>. Thus any JavaScript code (line 3 above) placed inside the HTML document is ignored. How do you hide JavaScript code from old
Do You Need JavaScript On Your Computer? Do you need JavaScript on your computer? A lot of websites use Javascript as a part of their core functionality, and if you browse the internet without JavaScript enabled then you probably won’t have the full experience that you normally would. Some websites may not work properly, others