JS Começa a seleção do conteúdo
/**
* @param {object} element HTMLElement
*/
function getCaretIndex(element) {
let position = 0;
const isSupported = typeof window.getSelection !== "undefined";
if (isSupported) {
const selection = window.getSelection();
if (selection.rangeCount !== 0) {
const range = window.getSelection().getRangeAt(0);
const preCaretRange = range.cloneRange();
preCaretRange.selectNodeContents(element);
preCaretRange.setEnd(range.endContainer, range.endOffset);
position = preCaretRange.toString().length;
}
}
return position + 1;
}
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