is-html-tag-opening

Does an HTML tag start at given position?

Install

This package is pure ESM. If you're not ready yet, install an older version of this program, 2.1.0 (npm i is-html-tag-opening@2.1.0).

npm i is-html-tag-opening

Quick Take

import { strict as assert } from "assert";

import { isOpening } from "is-html-tag-opening";

const text = "<span>a < b<span>";

// opening span tag's opening
assert.equal(isOpening(text, 0), true);

// unencoded bracket between a and b
assert.equal(isOpening(text, 8), false);

// closing span tag's opening
assert.equal(isOpening(text, 11), true);

Documentation

Please visit codsen.com for a full description of the API.

Contributing

To report bugs or request features or assistance, raise an issue on GitHub.

Licence

MIT License

Copyright 2010-2025 Roy Revelt and other contributors