~ Parse a query string into an object and get a query param by name

queryString.js

const urlQuery = {
    getAll(url) {
        if(!url) {
            return {};
        }

        const regx = /([^?=&]+)=([^&]*)?/g,
            result = {};
        
        url.replace(regx, (_, $1, $2) => result[$1] = decodeURIComponent($2 || ''));

        return result;
    },
    getByName(url, name) {
        if(!url) {
            return null;
        }

        const result = url.match(new RegExp('(\\?|&)' + name + '=(.*?)(&|$)', 'i')),
            param = (result && decodeURIComponent(result[2])) || null;

        return param;
    }
};

// Usage
const url = 'https://www.google.rs/search?q=react-native&oq=react-native&aqs=chrome..69i57j69i60l3j69i59l2.7340j0j1&sourceid=chrome&ie=UTF-8';

console.log(urlQuery.getAll(url)); // {q: "react-native", oq: "react-native", aqs: "chrome..69i57j69i60l3j69i59l2.7340j0j1", sourceid: "chrome", ie: "UTF-8"}
console.log(urlQuery.getByName(url, 'q')); // react-native