javascript get variable from url code example

Example 1: javascript get url parameters

let url = 'https://www.example.com?name=n1&name=n2';
let params = (new URL(url)).searchParams;
params.get('name') // "n1"
params.getAll('name') // ["n1", "n2"]

Example 2: how to get variable from url in javascript

var getParams = function (url) {
	var params = {};
	var parser = document.createElement('a');
	parser.href = url;
	var query = parser.search.substring(1);
	var vars = query.split('&');
	for (var i = 0; i < vars.length; i++) {
		var pair = vars[i].split('=');
		params[pair[0]] = decodeURIComponent(pair[1]);
	}
	return params;
};

Example 3: get parameters from url

var url_string = "http://www.example.com/t.html?a=1&b=3&c=m2-m3-m4-m5"; //window.location.href
var url = new URL(url_string);
var c = url.searchParams.get("c");
console.log(c);

Example 4: js get url variables

const postID = (new URLSearchParams(window.location.search)).get('post');

Example 5: set get variable in url

examplepage.php?var1=value&var2=value