How to catch parameters passed by the URL using javascript? [duplicate]

Data that is passed via POST is only available on the server side. The browser does not pass them to the JavaScript / client.

GET data can be read from url . There is no native tool for this like in PHP or Node.js . The method is more or less read this string splitting it into pieces.

To read the GET / query string from url you can use location.search that gives the part started by ? . Then you have to group by key value. The query syntax is:

  

? key = value & otroChave = otherValue & ... etc

? starts string , & separates each key group and value.

An example would be meusite.com/?lang=pt&page=home . To remove these parameters for an object for example can be done like this:

var query = location.search.slice(1);
var partes = query.split('&');
var data = {};
partes.forEach(function (parte) {
    var chaveValor = parte.split('=');
    var chave = chaveValor[0];
    var valor = chaveValor[1];
    data[chave] = valor;
});

console.log(data); // Object {lang: "pt", page: "home"}

Example: link