TextUpdateEvent: updateRangeStart property

Limited availability

This feature is not Baseline because it does not work in some of the most widely-used browsers.

Experimental: This is an experimental technology
Check the Browser compatibility table carefully before using this in production.

The TextUpdateEvent.updateRangeStart read-only property indicates the start position of the text range that is being replaced in the EditContext object.

Value

A Number.

Examples

Using `textupdate` to display the inserted text and location

html

<div id="editor"></div>

const editorEl = document.getElementById("editor");
const editContext = new EditContext();
editorEl.editContext = editContext;

editContext.addEventListener("textupdate", (e) => {
  console.log(
    `The user inserted the text "${e.text}" between index ${e.updateRangeStart} and index ${e.updateRangeEnd}.`,
  );
});

Specifications

Specification
EditContext API # dom-textupdateevent-updaterangestart

Browser compatibility

BCD tables only load in the browser