使用Typeahead和外部JSON输入无法正常工作

Question

致力于搜索框的预输入功能，我正在js文件中手动定义术语。取而代之的是，我需要通过url在外部解析 data：[] 的json响应。我该如何做到这一点。

jQuery.typeahead({
    input: '.js-typeahead-search_v1',
    order: "desc",
    source: {
        data: [
             "Andorra", "Angola", "Antigua and Barbuda",
            "Uzbekistan", "Vanuatu", "Venezuela", "Vietnam", "Yemen", "Zambia", "Zimbabwe"
        ]
    },
    callback: {
        onInit: function (node) {
            console.log('Typeahead Initiated on ' + node.selector);
        }
    }
});