<p>VBA, Python, Forecasting, ML, SQL, R. Some C#, JavaScript, HTML/CSS.</p>
<p>Links I refer to:</p>
<ol>
<li><a href="https://stackoverflow.com/a/56345695">How to use browser <em>Find</em> box to apply css selectors and find strings in html 1</a> , <a href="https://stackoverflow.com/a/56839785">2</a></li>
<li><a href="https://developer.mozilla.org/en-US/docs/Web/CSS/CSS_Selectors" rel="nofollow noreferrer">CSS selectors</a></li>
<li><a href="https://flukeout.github.io/" rel="nofollow noreferrer">Practice css selectors</a></li>
<li><a href="https://developer.mozilla.org/en-US/docs/Web/API/Document/querySelector" rel="nofollow noreferrer">querySelector</a>, <a href="https://developer.mozilla.org/en-US/docs/Web/API/Document/querySelectorAll" rel="nofollow noreferrer">querySelectorAll</a>, <a href="https://stackoverflow.com/questions/14377590">other</a></li>
<li><a href="https://stackoverflow.com/a/56279841">Find xhr requests feeding dynamic content 1</a>, <a href="https://stackoverflow.com/a/56924071">2</a>, <a href="https://stackoverflow.com/a/61051360">3</a>, <a href="https://scrapecrow.com/reverse-engineering-intro.html" rel="nofollow noreferrer">4</a></li>
<li><a href="https://stackoverflow.com/a/53929602">HTTP methods</a></li>
<li><a href="https://css-tricks.com/examples/nth-child-tester/" rel="nofollow noreferrer">CSS :nth-tester</a></li>
<li><a href="http://zvon.org/comp/r/ref-CSS3_selectors.html" rel="nofollow noreferrer">CSS selectors level 3</a></li>
<li><a href="http://www.cssdesk.com/" rel="nofollow noreferrer">CSS Sandbox</a></li>
<li><a href="http://tools.css3.info/selectors-test/test.html" rel="nofollow noreferrer">Browser css test suite</a></li>
<li><a href="http://nthmaster.com/" rel="nofollow noreferrer">nth-child</a></li>
<li><a href="https://stackoverflow.com/a/38724872">Selenium methods - benchmarking</a></li>
<li><a href="https://stackoverflow.com/a/52039249">CSS v XPath benchmarking</a></li>
<li><a href="https://stackoverflow.com/questions/57018221">js re-arranging elements</a></li>
<li><a href="https://stackoverflow.com/a/57896496">:not to filter lists</a></li>
<li><a href="https://www.youtube.com/watch?v=UB1O30fR-EE&amp;list=PLillGF-RfqbZTASqIqdvm1R5mLrQq79CU" rel="nofollow noreferrer">Beginner HTML5</a></li>
<li><a href="https://stackoverflow.com/questions/57931696">js source files</a></li>
<li><a href="https://stackoverflow.com/a/59265420">HTMLFile</a> <a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects" rel="nofollow noreferrer">Native methods</a></li>
<li><a href="https://stackoverflow.com/a/3046201">Threads|multi-processing</a></li>
</ol>
<p>Useful:</p>
<ol>
<li><a href="https://meta.stackexchange.com/questions/2677">Understanding Stack Exchange Data Explorer Schema</a></li>
<li><a href="https://codeblog.jonskeet.uk/2012/11/24/stack-overflow-question-checklist/" rel="nofollow noreferrer">Jon Skeet's checklist for writing a good question</a></li>
<li>Pages for scraping <a href="http://books.toscrape.com/" rel="nofollow noreferrer">1</a>, <a href="http://quotes.toscrape.com/" rel="nofollow noreferrer">2</a></li>
<li><a href="https://blog.codinghorror.com/rubber-duck-problem-solving/" rel="nofollow noreferrer">Effort expected of questions</a></li>
</ol>

QHarr