我有一个 index.html 文件,其中在下拉列表的 select 标签中使用了多个选项:
streamWriter.WriteLine(JsonConvert.SerializeObject(objDto));
streamWriter.close()
整个 select 标签都在一个表单元素中,基本上是为了使用 Flask 框架为机器学习模型创建一个 web 应用程序。
有没有办法使用javascript,我可以在html中动态生成这个选项值和列表框,
<块引用>此外,需要分配 0 到 15 之间的相同选项值,因为这将输入到预测模型
提前致谢!
答案 0 :(得分:0)
您可以将内容存储在数组中,进行迭代,并将选项的值设置为索引:
const values = [
"10th",
"11th",
"12th",
"1st-4th",
"5th-6th",
"7th-8th",
"9th",
"Assoc-acdm",
"Assoc-voc",
"Bachelors",
"Doctorate",
"HS-grad",
"Masters",
"Preschool",
"Prof-school",
"16 - Some-college"
];
values.forEach((e,i) => edu.innerHTML += `<option value=${i}>${e}</option>`);
<label for="edu">Education</label>
<select id="edu" name="edu"></select>
答案 1 :(得分:0)
您可以通过两种方式做到这一点。
innerHTML
。使用 innerHTML
// List of options
const list = ["12th", "11th", "10th"];
// Grabbing the select element from DOM
const selectField = document.getElementById("edu"); // `edu` is the id of select element in html
// DOM string which is about get generated and inserted.
let optionsString = "";
// Generating the string
list.forEach((item, index) => {
optionsString += ` <option value="${index}">${item}</option>`
});
// Inserting the string
selectField.innerHTML = optionsString;
<label for="edu">Education</label>
<select id="edu" name="edu">
</select>
使用 DOM API
// List of options
const list = ["12th", "11th", "10th"];
// Grabbing the select element from DOM
const selectField = document.getElementById("edu"); // `edu` is the id of select element in html
// Creating and attaching elements on the fly.
list.forEach((item, index) => {
const option = document.createElement("option");
option.value = index;
option.innerText = item;
selectField.appendChild(option);
});
<label for="edu">Education</label>
<select id="edu" name="edu">
</select>