Obtener parámetros de la url con Javascript

Para obtener un parámetro de la url con el lenguaje de programación Javascript hay que implementar el siguiente código:

Url del ejemplo:

http://tecnicoweb.es/?idUsuario=3&pelo=rubio&ojos=verdes

Código para obtener el valor del parámetro «idUsuario».

var queryString = window.location.search;
var urlParams = new URLSearchParams(queryString);
var anuncioParam = urlParams.get('idUsuario');

Paso a paso.

window.location.search;

Obtenemos «?idUsuario=3&pelo=rubio&ojos=verdes»

var urlParams = new URLSearchParams(queryString);

URLSearchParams es un objeto y te proporciona diferentes funcionalidades, podemos ver todas su opciones aquí

var anuncioParam = urlParams.get('idUsuario');

Se extra el parametro que le pasamos al .get.

console.log(anuncioParam);

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