javascript - 如何在按下按键时在 typeahead 中触发 ajax

Question

我的问题是我使用提前输入进行顶级搜索，它可以工作，但只有一次 ajax 在按键时调用，但每次按键时我都会调用，我的代码在下面

$.typeahead({
    input: '.js-typeahead-car_v1',
    maxItem: 100,
    order: "asc",
    hint: true,
    source: {
        searchkey: {
            url: {
                type: "POST",
                url: "/search",
                data: {
                    myKey: "muvalue"
                }
            }
        }
    },
    callback: {
        onClick: function (node, a, item, event) {
            $("#topsearchbtn").trigger( "click" );
        },
        onSubmit: function (node, form, item, event) {
            $("#topsearchbtn").trigger( "click" );
        }
    }
});

Answer 1

下面的代码工作正常，而且我也在我的项目之一中使用

$.typeahead({
    input: '.js-typeahead-car_v1',
    minLength: 3,
    maxItem: 20,
    order: "asc",
    dynamic: true,
    emptyTemplate: "no result for {{query}}",
    source: {
        searchkey: {
            url: {
                type: "POST",
                url: '/search',
                data: {
                    q: "myqery"
                }
            }
        }
    },
    callback: {
        onClick: function (node, a, item, event) {
            $("#topsearchbtn").trigger( "click" );
        },
        onSubmit: function (node, form, item, event) {
            $("#topsearchbtn").trigger( "click" );
        }

    },
    debug: true
});