Why were client-side frameworks like Angular introduced?

Dynamic websites used to function by taking a template that was nothing but HTML code with areas left vacant for feeding data and content into such templates before JavaScript-based client-side frameworks. This information was often retrieved from a database. We’d provide the produced HTML content to the user after merging the template and data. As you can see, it was a bit difficult, and it required a lot of processing in certain situations.

To get over these problems, individuals devised a new strategy in which they transfer the data required to create a page from their web servers to web browsers and then let JavaScript combine it with a predetermined template. Since even mobile phones can now perform this type of processing, servers may now simply deliver data to a client through the internet in a recognized format, such as JSON, XML, and so on. This minimizes the amount of processing that is done on the servers and increases performance.