webpack/lib/util/nonNumericOnlyHash.js

Packs CommonJs/AMD modules for the browser. Allows to split your codebase into multiple bundles, which can be loaded on demand. Support loaders to preprocess files, i.e. json, jsx, es7, css, less, ... and your custom stuff.

/*
	MIT License http://www.opensource.org/licenses/mit-license.php
	Author Ivan Kopeykin @vankop
*/

"use strict";

const A_CODE = "a".charCodeAt(0);

/**
 * @param {string} hash hash
 * @param {number} hashLength hash length
 * @returns {string} returns hash that has at least one non numeric char
 */
module.exports = (hash, hashLength) => {
	if (hashLength < 1) return "";
	const slice = hash.slice(0, hashLength);
	if (slice.match(/[^\d]/)) return slice;
	return `${String.fromCharCode(
		A_CODE + (parseInt(hash[0], 10) % 6)
	)}${slice.slice(1)}`;
};