// (C) 2007-2019 GoodData Corporation
const isString = (value: any): boolean => typeof value === "string";
const isNumber = (value: any): boolean => typeof value === "number";

/**
 * Replaces non-alphanumerical characters with underscore.
 */
export function webalize(str: string | number): string {
    const isValid = isString(str) || isNumber(str);
    const s = isValid ? str.toString() : "";
    return s.replace(/[^a-zA-Z0-9]/g, "_").toLowerCase();
}