HTML is the most fundamental of all programming languages

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To be a frontend or backend developer, a programmer must have knowledge of HTML because it is the basic language and all other languages, such as JavaScript, JSP, and PHP, etc., integrate with it while coding. Similarly, HTML syntax is similar to XML, which is now widely used for data storage.
As HTML and XML have similar syntax, making working between the two platforms simpler and more seamless. XML is increasingly being used for data storage today. Working with XML is simple for someone who is familiar with HTML.

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