Question

我正在尝试根据javascript确认对话框的结果创建一个条件函数。无论点击什么，似乎都会返回真实状态。有谁看到我做错了什么？

$(function () {
    $("#Language").change(function () {
        var a = $(this).val();
        if (a == 3) {
            confirm("Selecting a bilingual calendar will effect the billing. ")
            if (confirm) { console.log("test"); }
        }

    });
});

Answer 1

if(confirm)真的没有为你做任何事情（因为它不存在）。试试这个：

// Save the response in a var called userResponse
var userResponse = confirm("Selecting a bilingual calendar will effect the billing. ")
if (userResponse) { console.log("test"); }

您也可以通过简单地在if语句中添加确认来缩短代码：

// confirm() returns true or false. So, when evaluated your if simply says
// if(true) or if(false), depending on the answer.
if (confirm("Selecting a bilingual calendar will effect the billing. ")) {
    console.log("test");
}

Answer 2

$(function () {
    $("#Language").change(function () {
        var a = $(this).val();
        if (a == "3") { // notice the quotation marks
            // notice this variable
            var confirmed = confirm("Selecting a ... billing.");
            if (confirmed) { console.log("test"); }
        }
    });
});

Javascript / JQ - Confim - 真/假响应

2 个答案: