小编典典

如何将滑块值与表单占位符传递同步?

javascript

请原谅,因为我是新手编码员。我有一个滑块,当我拖动它并用 span 标签显示它时输出一个值

<div class="slidecontainer">
    <input type="range" min="0" max="10" value="5" class="slider1" id="myRange1">
</div>

<h4>Score: <span id="demo1"></span></h4>

<div class="login-box">
    <form action="https://sheetdb.io/api/v1/69kvuydqzi9bu" method="post" id="sheetdb-form">
        <div class="user-box">
            <input type="text" placeholder="Enter name of panel" name="data[Panel]" required>
    </div>
    <div>
        <input type="text" id="txtInput1">
        </div>
        <ul class="actions">
            <li><button type="submit">Submit Score</button></li>
    </ul>
    </form>
</div>

链接到 javascript 代码

var slider1 = document.getElementById("myRange1");
var output1 = document.getElementById("demo1");
var input1 = document.getElementById("txtInput1");
output1.innerText = slider1.value; // Display the default slider value
input1.value = slider1.value;   
// Update the current slider value (each time you drag the slider handle)
slider1.addEventListener("input1", function() {
const slider1Value = this.value;
output1.innerText = input1Value;
input.value = slider1Value;
});
slider1.oninput = function() {
output1.innerHTML = this.value;
}

因为我想将滑块值的输出传递给表单标签,因为我想使用 API 将值提交给 googlesheet

一切正常,但是,每当我拖动滑块时,表单占位符上显示的值都不会更新。我想同步它们并实时更新。这可能吗?我错过了什么明显的东西吗?

请救救我。谢谢!


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2022-07-25

共1个答案

小编典典

有几个错误,主要是在变量的命名中,但最重要的是在你的eventListener.

如您所见,里面的第一个元素()应该是 的类型,而event不是变量的名称。所以我放了change在这里查看更多信息),而不是input1.

正如我所说,其他更改主要是输入错误。

var slider1 = document.getElementById("myRange1");
var output1 = document.getElementById("demo1");
var input1 = document.getElementById("txtInput1");
output1.innerText = slider1.value; // Display the default slider value
input1.value = slider1.value;   
// Update the current slider value (each time you drag the slider handle)
slider1.addEventListener("change", function() {
const slider1Value = this.value;
output1.innerText = slider1Value;
input1.value = slider1Value;
});
slider1.oninput = function() {
output1.innerHTML = this.value;
}
<div class="slidecontainer">
    <input type="range" min="0" max="10" value="5" class="slider1" id="myRange1">
</div>
<h4>Score: <span id="demo1"></span></h4>
<div class="login-box">
    <form action="https://sheetdb.io/api/v1/69kvuydqzi9bu" method="post" id="sheetdb-form">
        <div class="user-box">
            <input type="text" placeholder="Enter name of panel" name="data[Panel]" required>
    </div>
    <div>
        <input type="text" id="txtInput1">
        </div>
        <ul class="actions">
            <li><button type="submit">Submit Score</button></li>
    </ul>
    </form>
</div>
2022-07-25