A wrapper is a programming language function for encapsulating and organizing elements within a well-defined interface.
Wrappers also enable interoperability between different software systems. Enclosing functions and codes of other computer languages allows a primary program to send commands to and receive outputs from the wrapped program, fostering seamless communication.
Wrappers are also valuable for web development. They give structure and consistency to a website by grouping similar elements together, facilitating collective styling and responsive web design. Without wrappers, developers would have to repeatedly modify code to prevent errors and inconsistencies.