Javascript – How to pass js variables to the flask jinja function url_for

$("#getVerification").click(function () {
    var tmp=$("#cellphone").val();
    console.log(tmp);
    $.getJSON("{{ url_for('auth.sendsms', cellphone=tmp )}}",
        function(data){
    });
});

As in the

above code, I want to use the string variable tmp as a parameter in the function url_for, but I don’t know how,

Thank you very much!