Get Selection More 
APIs
/**
* Returns the selected text
*/
function getText(win?: Window): string
function getTextFromSelection(selection: Selection | null, win?: Window): string
/**
* Returns the paragraph containing the selection text.
*/
function getParagraph(win?: Window): string
function getParagraphFromSelection(selection: Selection | null): string
/**
* Returns the sentence containing the selection text.
*/
function getSentence(win?: Window): string
function getSentenceFromSelection(selection: Selection | null): stringOptionally pass window of other frame to get selection within that frame.
Usage
import { getText, getParagraph, getSentence } from 'get-selection-more'
document.addEventListener('selectionchange', () => {
console.log(getText(), getParagraph(), getSentence())
})Or load the UMD module directly which exposes getSelectionMore global.