WCAG and OWASP indicate web development, probably front-end development. You will want to learn the standard DOM methods. Walking the DOM as a tree structure a

WCAG and OWASP indicate web development, probably front-end development. You will want to learn the standard DOM methods. Walking the DOM as a tree structure as opposed to treating it as a database to query will increase your application capabilities. Learning to access the DOM without parsing a selector string will make your application many thousands of this new faster. I suggest: * https://gist.github.com/thegitfather/9c9f1a927cd57df14a59c268f118ce86 https://gist.github.com/thegitfather/9c9f1a927cd57df14a59c26... * https://prettydiff.com/2/guide/unrelated_dom.xhtml https://prettydiff.com/2/guide/unrelated_dom.xhtml * Web APIs - https://developer.mozilla.org/en-US/docs/Web/API https://developer.mozilla.org/en-US/docs/Web/API * RegExp - https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Regular_Expressions/Cheatsheet https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guid... * http - https://devhints.io/http-status https://devhints.io/http-status