DOM Selection cheatsheet

var sel = document.getSelection()

See: https://devdocs.io/dom/selection

sel.removeAllRanges() //  deselects
sel.addRange(range) //    sets a selection
sel.removeRange(range) // remove a range

sel.rangeCount
sel.getRangeAt(0) // get the 0th range

sel.collapse(parent, offset)
sel.collapseToEnd()
sel.collapseToStart()
sel.isCollapsed

sel.containsNode(node)

sel.deleteFromDocument()

document.addEventListener('selectionchange', () => {})