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What is HTML entity coding?

HTML entity encoding is a mechanism used in HTML to replace special characters to ensure that they are displayed correctly in the browser. These special characters have specific meanings in HTML. For example, the less-than sign "" is used to indicate the beginning of an HTML tag, the greater than sign "" is used to indicate the end of an HTML tag, and quotation marks may interfere with the definition of HTML attributes. To avoid these problems, HTML entity coding was introduced, replacing these special characters with specific character sequences. The format of HTML entity encoding is generally "", where "name" represents the name or code of the special character. HTML entity encoding is a mechanism for converting Unicode characters to HTML entities and is used to represent various characters in HTML, including characters outside the ASCII character set (HTML itself only supports the ASCII character set). Entity In HTML entity coding, Entity refers to a special representation used to represent specific characters or symbols. These entities are predefined and characters are represented by using entity names or entity numbers. HTML entity encoding is also known as escape characters in HTML. A string that starts with a hyphen (&) and ends with a semicolon (;), which is used to display invisible and reserved characters (such as HTML tags). On the front end, it is generally encoded as and to avoid XSS attacks. These are HTML entity encodings.