通过单击按钮使字段有效时出现容器答案

【问题标题】：Make a container appear when field is valid with a button click通过单击按钮使字段有效时出现容器
【发布时间】：2019-06-28 16:30:29
【问题描述】：

我是 jQuery 新手。

我正在使用一个名为 jQuery Validate 的 jQuery 插件。我尝试在他们的网站上查看示例，但找不到与我相似的内容。

我尝试了各种方法，但我无法让它发挥作用。

这个想法是在用户成功填写他们的邮政编码并单击按钮时显示数据容器。当他们按下输入键盘按钮时，它不应该出现。

$("#searchForm").validate({
    rules: {
        text: {
            required: true,
            minlength: 7
        }
    }
});

$(".trigger").click(function(e) {
    $(".even").removeClass("hide");
});

html {
    overflow-x: hidden;
}

body {
    background-image: radial-gradient(51.26% 104.44%, #313B4B 0%, #222831 100%);
    padding: 35px 30px;
}

li {
    color: #92B572;
    list-style-type: none;
    font-size: 18px;
    margin: 10px 0;
}

h1,
h2,
h4,
span {
    color: #B9E4FA;
}

h3 {
    padding-top: 130px;
    color: #FFF;
}

h1 {
    font-size: 45px;
    font-weight: light;
    line-height: 55px;
    text-align: center;
}

h2 {
    font-size: 25px;
    line-height: 55px;
    margin: 0 0 50px 0;
    text-align: center;
}

label,
p {
    color: #B9E4FA;
    font-family: "FSElliot";
    font-size: 20px;
}

input {
    background-color: #E5E5E5;
    border-radius: 8px;
    box-shadow: inset 0 1px 3px 0 rgba(0, 0, 0, 0.5), inset 0 2px 3px 0 rgba(0, 0, 0, 0.5);
    height: 67px;
    width: 100%;
    border-style: none;
}

button {
    background-color: #70BBB7;
    transition: background-color 0.5s ease;
    border-radius: 8px;
    height: 69px;
    width: 100%;
    color: #FFFFFF;
    font-weight: 700;
    line-height: 30px;
    text-align: center;
    outline-style: none;
    border-style: none;
    font-size: 18px;
}

button:hover {
    background-color: #497E7B;
}

.center-block {
    line-height: 140px;
}

input:active,
input:focus,
button:active,
button:focus {
    outline: none;
    border: none;
}

input[type=text] {
    padding: 10px 20px;
    font-size: 18px;
}

.rectangle {
    background-image: linear-gradient(180deg, #313B4B 0%, #2C3640 100%);
    opacity: 0.15;
    width: 2000px;
    height: 400px;
    z-index: -1;
    position: absolute;
    transform: rotate(20deg);
    -ms-transform: rotate(20deg);
    -webkit-transform: rotate(20deg);
    margin: 20px 0;
}

.uprnResult {
    font-weight: 700;
    letter-spacing: 3.8px;
    line-height: 50px;
    font-size: 40px;
    color: #FFF;
}

.data-container {
    text-align: center;
    margin: 35px 0;
}

.data-oval {
    background-color: #FBF6EF;
    border-radius: 100%;
    box-shadow: 0 2px 4px 0 rgba(0, 0, 0, 0.5), inset 0 1px 3px 0 rgba(0, 0, 0, 0.5);
    width: 230px;
    height: 230px;
    display: inline-block;
}

.data-rectangle {
    background-color: #3A4554;
    border-radius: 8px;
    box-shadow: 0 3px 4px 0 rgba(0, 0, 0, 0.38);
    opacity: 0.7442336309523809;
    width: 100%;
    height: 430px;
    margin-top: -100px;
    position: relative;
    z-index: -1;
}


div.data-rectangle h3 {
    display: inline-block;
    position: relative;
}

div.data-rectangle h3:after {
    position: absolute;
    content: '';
    border-bottom: 1px solid #FFF;
    width: 150px;
    transform: translateX(-50%);
    bottom: -35px;
    left: 50%;
}

div.data-rectangle h3+p {
    color: #FFFFFF;
    font-size: 120px;
    font-weight: 700;
    margin-top: 35px;
    text-align: center;
}

.rawData-headers {
    margin: 25px 0;
}

.rawData-headers h4 {
    margin: 0 0 15px 0;
}

.rawData-container {
    background-color: #3A4554;
    border-radius: 8px;
    box-shadow: 0 3px 4px 0 rgba(0, 0, 0, 0.38);
    opacity: 0.7442336309523809;
    width: 100%;
    padding: 25px 15px;
}

.hide {
    display: none;
}

<head>
    <meta charset="utf-8" />
    <link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css" integrity="sha384-ggOyR0iXCbMQv3Xipma34MD+dH/1fQ784/j6cY/iJTQUOhcWr7x9JvoRxT2MZw1T" crossorigin="anonymous">
    <link rel="stylesheet" href="css/styles.css">
    <script src="https://kit.fontawesome.com/d7ccf5cd0f.js"></script>
    <title>test</title>
</head>

<body>
    <section>
        <article>
            <div class="rectangle"></div>
        </article>
        <!-- Logo section -->
        <article>
            <div class="container">
                <div class="row">
                    <div class="col-lg-2">
                        <a href="index.html">
                            <div class="logo"></div>
                        </a>
                    </div>
                    <div class="col">
                    </div>
                    <div class="col">
                    </div>
                </div>
            </div>
        </article>
        <!-- Headers section -->
        <article>
            <div class="container">
                <div class="row">
                    <div class="col">
                    </div>
                    <div class="col-lg-6">
                        <h1>Test</h1>
                        
                    </div>
                    <div class="col">
                    </div>
                </div>
            </div>
        </article>
        <!-- Form section -->
        <article>
            <div class="container">
                <div class="row">
                    <div class="col-lg-10">
                        <form id="searchForm">
                            <label>Zip Code</label>
                            <input type="text" name="text">
                        </form>
                    </div>
                    <div class="col-lg-2 center-block">
                        <button type="submit" value="submit" class="trigger">Submit!</button>
                    </div>
                </div>
            </div>
        </article>
            <!-- Data Container -->
            <div class="even hide">
                <article>
                    <div class="container">
                        <div class="row">
                            <div class="col-lg-4">
                                <div class="data-container">
                                    <div class="data-oval">
                                    </div>
                                    <div class="data-rectangle">
                                        <h3>Data</h3>
                                        <p>4</p>
                                    </div>
                                </div>
                            </div>
                </article>
            </div>
    </section>
    <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery-validate/1.19.1/jquery.validate.min.js"></script>
    <script src="js/functions.js"></script>

【问题讨论】：

标签： javascript jquery jquery-validate

【解决方案1】：

每当用户键入或更改其值时，您需要检查该字段是否为valid()（使用此插件的表单中的每个字段都有该方法）：

$("#searchForm input").on("keyup", function() {
  if ($(this).valid()) {
    $("#data-container").show();
  }
  else {
    $("#data-container").hide();
  }
});

您更新的 sn-p：

$("#searchForm").validate({
    rules: {
        text: {
            required: true,
            minlength: 7
        }
    }
});

$(".trigger").click(function(e) {
    $(".even").removeClass("hide");
});

$("#searchForm input").on("keyup", function() {
  if ($(this).valid()) {
    $("#data-container").show();
  }
  else {
    $("#data-container").hide();
  }
});

html {
    overflow-x: hidden;
}

body {
    background-image: radial-gradient(51.26% 104.44%, #313B4B 0%, #222831 100%);
    padding: 35px 30px;
}

li {
    color: #92B572;
    list-style-type: none;
    font-size: 18px;
    margin: 10px 0;
}

h1,
h2,
h4,
span {
    color: #B9E4FA;
}

h3 {
    padding-top: 130px;
    color: #FFF;
}

h1 {
    font-size: 45px;
    font-weight: light;
    line-height: 55px;
    text-align: center;
}

h2 {
    font-size: 25px;
    line-height: 55px;
    margin: 0 0 50px 0;
    text-align: center;
}

label,
p {
    color: #B9E4FA;
    font-family: "FSElliot";
    font-size: 20px;
}

input {
    background-color: #E5E5E5;
    border-radius: 8px;
    box-shadow: inset 0 1px 3px 0 rgba(0, 0, 0, 0.5), inset 0 2px 3px 0 rgba(0, 0, 0, 0.5);
    height: 67px;
    width: 100%;
    border-style: none;
}

button {
    background-color: #70BBB7;
    transition: background-color 0.5s ease;
    border-radius: 8px;
    height: 69px;
    width: 100%;
    color: #FFFFFF;
    font-weight: 700;
    line-height: 30px;
    text-align: center;
    outline-style: none;
    border-style: none;
    font-size: 18px;
}

button:hover {
    background-color: #497E7B;
}

.center-block {
    line-height: 140px;
}

input:active,
input:focus,
button:active,
button:focus {
    outline: none;
    border: none;
}

input[type=text] {
    padding: 10px 20px;
    font-size: 18px;
}

.rectangle {
    background-image: linear-gradient(180deg, #313B4B 0%, #2C3640 100%);
    opacity: 0.15;
    width: 2000px;
    height: 400px;
    z-index: -1;
    position: absolute;
    transform: rotate(20deg);
    -ms-transform: rotate(20deg);
    -webkit-transform: rotate(20deg);
    margin: 20px 0;
}

.uprnResult {
    font-weight: 700;
    letter-spacing: 3.8px;
    line-height: 50px;
    font-size: 40px;
    color: #FFF;
}

.data-container {
    text-align: center;
    margin: 35px 0;
}

.data-oval {
    background-color: #FBF6EF;
    border-radius: 100%;
    box-shadow: 0 2px 4px 0 rgba(0, 0, 0, 0.5), inset 0 1px 3px 0 rgba(0, 0, 0, 0.5);
    width: 230px;
    height: 230px;
    display: inline-block;
}

.data-rectangle {
    background-color: #3A4554;
    border-radius: 8px;
    box-shadow: 0 3px 4px 0 rgba(0, 0, 0, 0.38);
    opacity: 0.7442336309523809;
    width: 100%;
    height: 430px;
    margin-top: -100px;
    position: relative;
    z-index: -1;
}


div.data-rectangle h3 {
    display: inline-block;
    position: relative;
}

div.data-rectangle h3:after {
    position: absolute;
    content: '';
    border-bottom: 1px solid #FFF;
    width: 150px;
    transform: translateX(-50%);
    bottom: -35px;
    left: 50%;
}

div.data-rectangle h3+p {
    color: #FFFFFF;
    font-size: 120px;
    font-weight: 700;
    margin-top: 35px;
    text-align: center;
}

.rawData-headers {
    margin: 25px 0;
}

.rawData-headers h4 {
    margin: 0 0 15px 0;
}

.rawData-container {
    background-color: #3A4554;
    border-radius: 8px;
    box-shadow: 0 3px 4px 0 rgba(0, 0, 0, 0.38);
    opacity: 0.7442336309523809;
    width: 100%;
    padding: 25px 15px;
}

.hide {
    display: none;
}

<head>
    <meta charset="utf-8" />
    <link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css" integrity="sha384-ggOyR0iXCbMQv3Xipma34MD+dH/1fQ784/j6cY/iJTQUOhcWr7x9JvoRxT2MZw1T" crossorigin="anonymous">
    <link rel="stylesheet" href="css/styles.css">
    <script src="https://kit.fontawesome.com/d7ccf5cd0f.js"></script>
    <title>test</title>
</head>

<body>
    <section>
        <article>
            <div class="rectangle"></div>
        </article>
        <!-- Logo section -->
        <article>
            <div class="container">
                <div class="row">
                    <div class="col-lg-2">
                        <a href="index.html">
                            <div class="logo"></div>
                        </a>
                    </div>
                    <div class="col">
                    </div>
                    <div class="col">
                    </div>
                </div>
            </div>
        </article>
        <!-- Headers section -->
        <article>
            <div class="container">
                <div class="row">
                    <div class="col">
                    </div>
                    <div class="col-lg-6">
                        <h1>Test</h1>
                        
                    </div>
                    <div class="col">
                    </div>
                </div>
            </div>
        </article>
        <!-- Form section -->
        <article>
            <div class="container">
                <div class="row">
                    <div class="col-lg-10">
                        <form id="searchForm">
                            <label>Zip Code</label>
                            <input type="text" name="text">
                        </form>
                    </div>
                    <div class="col-lg-2 center-block">
                        <button type="submit" value="submit" class="trigger">Submit!</button>
                    </div>
                </div>
            </div>
        </article>
            <!-- Data Container -->
            <div class="even hide" id="data-container">
                <article>
                    <div class="container">
                        <div class="row">
                            <div class="col-lg-4">
                                <div class="data-container">
                                    <div class="data-oval">
                                    </div>
                                    <div class="data-rectangle">
                                        <h3>Data</h3>
                                        <p>4</p>
                                    </div>
                                </div>
                            </div>
                </article>
            </div>
    </section>
    <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery-validate/1.19.1/jquery.validate.min.js"></script>
    <script src="js/functions.js"></script>

【讨论】：