jQuery $.get or $.post to catch page load error (eg. 404)

Question

How do you catch Server Error or 404 page not found, when you use $.get or $.post ?

For example:

$.post(\"/myhandler\", { value: 1 }, function(data)          


        

Answer 1

use error handler on $.ajax()

$.ajax({
    url: "/myhandler", 
    data: {value: 1},
    type: 'post',
    error: function(XMLHttpRequest, textStatus, errorThrown){
        alert('status:' + XMLHttpRequest.status + ', status text: ' + XMLHttpRequest.statusText);
    },
    success: function(data){}
});

demo