Use special content value in Code Block Pro WordPress plugin based on language

script.js

const addDollarBash = () => Array.from(document.querySelectorAll("div[class*='code-block-pro']"))
	// check if direct child has a span with text "Bash"
	.filter((b) => b.querySelector(':scope > span')?.textContent === 'Bash')
	// add language-bash class to the parent
	.forEach((b) => b.classList.add('language-bash'));

document.addEventListener("DOMContentLoaded", addDollarBash);

style.css

.language-bash:not(#\x) .line::before {
  content: "$" !important;
}