Move Line Down

script

// grab ranges and text
let [selStart, selLen] = editor.getSelectedRange()
let [lnStart, lnLen] = editor.getSelectedLineRange()
let lnText = editor.getTextInRange(lnStart, lnLen)
let text = editor.getText()

if (lnStart + lnLen >= text.length) { // check for end
	// do nothing - can't move last line down
}
else {
	// get next line range
	let [nextLnStart, nextLnLen] = editor.getLineRange(lnStart + lnLen, 0)
	let nextLnText = editor.getTextInRange(nextLnStart, nextLnLen)
	if (!nextLnText.endsWith("\n")) {
		nextLnText += "\n"
		nextLnLen += 1
	}
	editor.setTextInRange(lnStart, lnLen + nextLnLen, `${nextLnText}${lnText}`)
	editor.setSelectedRange(selStart + nextLnLen, selLen)
}