Function digest

lib/util/hash/hash-digest.js:203–229

(hash, encoding, isSafe)

 * @returns {string | Buffer} digest
 */
const digest = (hash, encoding, isSafe) => {
	if (typeof encoding === "undefined") {
		return isSafe ? hash.digest() : toBuffer(hash.digest());
	}

	if (encoding === "base64url" && !isBase64URLSupported) {
		const digest = isSafe
			? hash.digest("base64")
			: toString(hash.digest("base64"), "base64");

		return digest.replace(/\+/g, "-").replace(/\//g, "_").replace(/[=]+$/, "");
	} else if (
		typeof ENCODE_TABLE[/** @type {Base} */ (encoding.slice(4))] !== "undefined"
	) {
		const buf = isSafe ? hash.digest() : toBuffer(hash.digest());

		return encode(
			buf,
			/** @type {Base} */
			(encoding.slice(4))
		);
	}

	return isSafe
		? hash.digest(encoding)
		: toString(hash.digest(encoding), encoding);
};

module.exports.decode = decode;
module.exports.digest = digest;