What is an entity code?

An entity code, also known as a character entity reference, is a code that represents a special character in HTML and XML documents. These codes are used to display characters that are reserved for use as markup, such as <, >, &, and ".

Entity codes are written as an ampersand (&) followed by the entity name or number, and then a semicolon (;). For example, the entity code for the less-than symbol (<) is <, and the entity code for the copyright symbol (©) is ©.

Entity codes are helpful for displaying characters that are difficult to type or may not be supported by all browsers. They can also make text more readable and accessible by replacing symbols with their corresponding entity codes.