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按钮onclick事件调用不返回对象的函数

[英]Button onclick event calls function that isn't returning object

问题是readForm()函数不会从$(“#submitButton).on(” click“,readForm)返回对象。我很困惑,因为从console.log(” working单击#submitButton按钮时,“)行确实将“工作”记录到控制台。

    <!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">
    <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
    <script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>


</head>

<body>

    <div class="container">
        <div class="col-md-6">
            <h2>Employee Page</h2>
            <form id="employeeProfile">
                <div class="form-group">
                    <label for="firstName">First Name:</label>
                    <input id="firstName" type="text" class="form-control" placeholder="Please enter first name.." name="firstName">
                </div>
                <div class="form-group">
                    <label for="lastName">Last Name:</label>
                    <input id="lastName" type="text" class="form-control" placeholder="Please enter last name." name="lastName">
                </div>
                <div>
                    <label for="age">Age:</label>
                    <input id="age" type="number" class="form-control" placeholder="Please enter your age." name="age">
                </div>
                <div class="radio-group" id="gender">
                    <h5>
                        <b>Gender:</b>
                    </h5>
                    <div class="radio">
                        <label>
                            <input id="genderM" type="radio" name="gender" value="male">Male:
                        </label>
                    </div>
                    <div class="radio">
                        <label>
                            <input id="genderF" type="radio" name="gender" value="female">Female:</label>
                    </div>
                    <div class="radio">
                        <label>
                            <input id="genderOth" type="radio" name="gender" value="other" checked="checked">Other:</label>
                    </div>
                </div>
                <div>
                    <label for="salary">Salary:</label>
                    <input id="salary" type="number" class="form-control" placeholder="please enter you salary." name="salary">
                </div>
                <div class="manager">
                    <label for="manager">Manager:</label>
                    <input id="manager" type="checkbox" name="managerY">
                </div>
                <div class="form-group">
                    <label for="comments">Comments</label>
                    <textarea id="comments" class="form-control" rows="3" placeholder="Place any comments here." name="comments"></textarea>
                </div>
                <button id="submitButton" type="button" class="btn btn-primary">Submit Profile</button>
                <button id="calculateTax" type="button" class="btn btn-default">Calculate tax</button>
            </form>
        </div>
    </div>

    <script>

        $(document).ready(function () {
            $("#submitButton").on("click", readForm);
        });

        function readForm() {
            console.log("working");
            return {
                firstName: $("#firstName").val(),
                lastName: $("#lastName").val(),
                age: $("#age").val(),
                gender: $('input[name=gender]:checked').val(),
                salary: $("#salary").val(),
                manager: $("#manager").prop("checked"),
                comments: $("#comments").val()
            }
        };

    </script>

</body>

</html>

我是这一切的新手,因此不胜感激。 谢谢。

尝试这个:

$(document).ready(function () {
  $("#submitButton").on("click", function() {
    var result = readForm();
    console.log(result);
  });
});
$(document).ready(function () {
    $("#submitButton").on("click", readForm);
});

您问为什么readForm什么也不返回,但是您怎么知道什么时候返回呢?

$(document).ready(function () {
    $("#submitButton").on("click", function readFormReturn() {
        console.log(readForm())
    });
});

在这里,您应该记录一下readForm返回的内容

该函数正在返回一个值,您只是对其不执行任何操作,如果您在哪里用console.log替换您的返回值,您将看到它确实返回了。

    console.log( {
        firstName: $("#firstName").val(),
        lastName: $("#lastName").val(),
        age: $("#age").val(),
        gender: $('input[name=gender]:checked').val(),
        salary: $("#salary").val(),
        manager: $("#manager").prop("checked"),
        comments: $("#comments").val()
    });

但是,如果要对数据进行处理,则必须在函数内部进行处理,因此请将信息设置为变量,如下所示:

    var data = {
        firstName: $("#firstName").val(),
        lastName: $("#lastName").val(),
        age: $("#age").val(),
        gender: $('input[name=gender]:checked').val(),
        salary: $("#salary").val(),
        manager: $("#manager").prop("checked"),
        comments: $("#comments").val()
    };

并执行函数内部的操作,因为您无法通过on事件link返回数据。

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