The best way to learn how to code is by writing code. 

With that said, it is extremely important to take some time to read up on the fundamentals in the beginning. A strong start would be picking up a book or simply following a tutorial online. These days, I never purchase any books related to programming because I know that I can always find what I need online. However, there are some perks to reading books, especially if you're a beginner.

The best language to learn these days is Javascript, because it is probably the most used modern language today and also because it is easy to learn! Additionally, you can build the backend and the frontend of websites in Javascript and you can even build apps nowadays with it (React Native).

In summary, My advice to you would be to pickup a book on Javascript, or to simply lookup "Javascript Tutorial" on Google. Learn the language first and most importantly, PRACTICE. You can lookup tutorials for building simple websites using Javascript.