Return all search params from a url

getParams.js

/**
 * Description Plockar ut URL-parametrar som ett objekt plus andra godsaker.
 * @param {string} href
 * @returns {Object} {...allParams, href:getterFunction, baseUrl:URL, params:URLSearchParams}
 */
function getParams(href) {
    const baseUrl = new URL(href)
    var paramSeparator = baseUrl.hash.startsWith('#') ? '#' : '?'
    var params = baseUrl.hash.startsWith('#') ? new URLSearchParams(baseUrl.hash.slice(1)) : new URLSearchParams(baseUrl.search)
    const obj = { baseUrl, get href() { return this.baseUrl.origin + this.baseUrl.pathname + paramSeparator + this.params.toString() }, params }
    for (const [key, value] of params.entries()) {
        obj[key] = value;
    }
    params.href = () => this.origin + this.pathname + '#'
    return obj
}