getParams.js
Get all URL parameters from a query string.
Example
let url = 'https://gomakethings.com?sandwhich=chicken%20salad&bread=wheat&topping=tomato&topping=spicy+mayo';
let params = getParams(url);
The helper function
/**
* Get the URL parameters
* (c) Chris Ferdinandi, MIT License, https://gomakethings.com
* @param {String} url The URL
* @return {Object} The URL parameters
*/
function getParams (url = window.location) {
let params = {};
new URL(url).searchParams.forEach(function (val, key) {
if (params[key] !== undefined) {
if (!Array.isArray(params[key])) {
params[key] = [params[key]];
}
params[key].push(val);
} else {
params[key] = val;
}
});
return params;
}