Markdown Bold (**) [no selection]

script

// Apply Markdown bold to selection 
// OR 
// insert ** on both ends of a line  if no selection is made
// Original by @Agiletortoise
// Update by @MyGeekDaddy
// Rev Date: 2022-10-07

const markup = "**";
const sel = editor.getSelectedText();
const [st, len] = editor.getSelectedRange();
const [start, end] = editor.getLineRange();

if (!sel || sel.length == 0) {
   
   var [lnStart, lnLen] = editor.getSelectedLineRange();
   var lnText = editor.getTextInRange(lnStart, lnLen);
   // scrub the invisible newline character from the text selection
   lnText = lnText.replace(/\n$/, "");
   lnLen = lnText.length
   editor.setTextInRange(lnStart, lnLen, markup + lnText+ markup);
}
else {
  editor.setSelectedText(markup + sel + markup);
  editor.setSelectedRange(st + len + (markup.length*2),0);
}