Function update

lib/util/hash/hash-digest.js:149–172

(hash, data, encoding)

 * @returns {void}
 */
const update = (hash, data, encoding) => {
	if (encoding === "base64url" && !isBase64URLSupported) {
		const base64String = /** @type {string} */ (data)
			.replace(/-/g, "+")
			.replace(/_/g, "/");
		const buf = Buffer.from(base64String, "base64");
		hash.update(buf);
		return;
	} else if (
		typeof data === "string" &&
		encoding &&
		typeof ENCODE_TABLE[/** @type {Base} */ (encoding.slice(4))] !== "undefined"
	) {
		const buf = decode(data, /** @type {Base} */ (encoding.slice(4)));
		hash.update(buf);
		return;
	}

	if (encoding) {
		hash.update(/** @type {string} */ (data), encoding);
	} else {
		hash.update(data);
	}
};

/**
 * Returns digest.