Registration Form: Linking to login form Java

The user has a registration form which is running and is good but there is a problem with looping the registration form when entering an existing user. The following is the code Click here to view original web page at stackoverflow.com

JavaScript: What is the Difference Between a Deep Copy and a Shallow Copy?

In JavaScript most of the times we pass values by references, unless it is required to deal with primitives. In the following example of code primitive values are 123, ‘bob’, true, null, undefined]: To understand the difference between shallow copying and deep copying need to know the difference between reference copy and object copy. Reference […]

JavaScript Frameworks Market Share: Usage Statistics

If you are reading this article then you know what is a JavaScript (JS) framework. JavaScript (or JS) is at the heart of web development. Before front-end developers where choosing JavaScript frameworks based on the reviews, today, in the data-driven world choosing an app, or any technology tack becomes much easier as there is a […]

‘null’ vs ‘undefined’ in JavaScript: What is the Difference?

null vs undefined are 2 of the datatypes of Javascript out of 8 basic data types. Developers using JavaScript misinterpret the difference between null and undefined. In JavaScript technology, like in any other programming languages, there are values which should say ‘I don’t exist’. In JavaScript technology, that value is null. The undefined value is […]