How to send a command without reloading the page?

Question

JavaScript

Hello. The situation is as follows: there is a command that looks like this: http://* ip address here*/*here are some letters and numbers*. I paste this command in a href="" and following the link, the command is executed. But at the same time, a new blank page opens, where the command is written in the address bar.
How can I send a command without reloading the page? And is a handler necessary in this case?

Answer 1

Reading about
ajax and cors

Answer 2

<button id="sendRequest">Отправить запрос</button>
$( function() {
$('#sendRequest').click( function() {
    $.get("url");
});
});

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