jQuery 3 slim ajax basic example

问题

I'm new to jQuery 3. The following is a basic fiddle, working with previous versions of jQuery, but does not work with jQuery 3

$(function() {
    $.ajax({
        url: '/echo/json',
        type: 'GET',
        dataType: 'json',
        success: function(data) {
            console.log(data)
        }
    });
})

In the console, I get this error:

jquery-3.1.1.slim.min.js:2 jQuery.Deferred exception: $.ajax is not a function TypeError: $.ajax is not a function

jquery-3.1.1.slim.min.js:2 Uncaught TypeError: $.ajax is not a function(…)

Why ?

回答1:

jQuery 3 slim version doesn't support ajax.

According to the release docs,

Along with the regular version of jQuery that includes the ajax and effects modules, we’re releasing a “slim” version that excludes these modules. All in all, it excludes ajax, effects, and currently deprecated code.

To use .ajax method, simply use the full version one.

Here's the working fiddle

来源：https://stackoverflow.com/questions/40991919/jquery-3-slim-ajax-basic-example