Javascript 删除表单中动态创建的元素
我知道这是一个基本的问题,但我正在制作一个动态表单,在弄清楚如何删除共享同一类的元素时遇到了一些麻烦。我在网上和其他帖子上四处寻找实现这一目标的方法,但仍然无法找到答案 我是新手,所以我为这个基本问题道歉。下面,我粘贴了相关的代码和我的尝试。有人能帮我吗Javascript 删除表单中动态创建的元素,javascript,html,Javascript,Html,我知道这是一个基本的问题,但我正在制作一个动态表单,在弄清楚如何删除共享同一类的元素时遇到了一些麻烦。我在网上和其他帖子上四处寻找实现这一目标的方法,但仍然无法找到答案 我是新手,所以我为这个基本问题道歉。下面,我粘贴了相关的代码和我的尝试。有人能帮我吗 var ingCounter = 1; var dirCounter = 1; var limit = 10; function addIngredient(divName){ if (ingCounter == limit) {
var ingCounter = 1;
var dirCounter = 1;
var limit = 10;
function addIngredient(divName){
if (ingCounter == limit) {
alert("You have reached the add limit");
}
else {
var newdiv = document.createElement('div');
newdiv.innerHTML = "<div class='ingredientSet'><input class='ingredientInput' type='text' name='ingredients[]'><button class='deleteIngredientButton' type='button' onClick='removeElement('directionSet');'>X</button></div>";
document.getElementById(divName).appendChild(newdiv);
ingCounter++;
}
}
function addDirection(divName){
if (dirCounter == limit) {
alert("You have reached the add limit");
}
else {
var newdiv = document.createElement('div');
newdiv.innerHTML = "<div class='directionSet'><input class='directionInput' type='text' name='directions[]'><button class='deleteDirectionButton' type='button'>X</button></div>";
document.getElementById(divName).appendChild(newdiv);
dirCounter++;
}
}
function removeElement(elementId) {
// Removes an element from the document
var element = document.getElementById(elementId);
element.parentNode.removeChild(element);
}
var-ingCounter=1;
var-dirCounter=1;
var限值=10;
函数添加元素(divName){
如果(ingCounter==限制){
警报(“您已达到添加限制”);
}
否则{
var newdiv=document.createElement('div');
newdiv.innerHTML=“X”;
document.getElementById(divName).appendChild(newdiv);
ingCounter++;
}
}
函数addDirection(divName){
if(dirCounter==限制){
警报(“您已达到添加限制”);
}
否则{
var newdiv=document.createElement('div');
newdiv.innerHTML=“X”;
document.getElementById(divName).appendChild(newdiv);
dirCounter++;
}
}
函数removeElement(elementId){
//从文档中删除元素
var element=document.getElementById(elementId);
element.parentNode.removeChild(元素);
}
自制
制作你的自制食谱
标题
添加您的膳食图像
选择一个文件
描述
成分
添加另一种成分
方向
添加另一个方向
创建配方
谢谢您的帮助。在您的代码中,您使用的是
getElementById
,但是没有id
名为directionSet
的类
通过调用onClick
函数,可以简单地使用和删除新添加的动态输入
在onClick
函数removeElement()
-中,此
引用我们单击的元素,它将从表单中删除
var-ingCounter=1;
var-dirCounter=1;
var限值=10;
函数添加元素(divName){
如果(ingCounter==限制){
警报(“您已达到添加限制”);
}否则{
var newdiv=document.createElement('div');
newdiv.innerHTML=“X”;
document.getElementById(divName).appendChild(newdiv);
ingCounter++;
}
}
函数addDirection(divName){
if(dirCounter==限制){
警报(“您已达到添加限制”);
}否则{
var newdiv=document.createElement('div');
newdiv.innerHTML=“X”;
document.getElementById(divName).appendChild(newdiv);
dirCounter++;
}
}
函数removeElement(elementId){
//从文档中删除元素
elementId.parentElement.remove()
}
自制
制作你的自制食谱
标题
添加您的膳食图像
选择一个文件
描述
成分
添加另一种成分
方向
添加另一个方向
创建配方
感谢您的解释,非常有意义@哈尔谢赫很高兴我能帮忙。快乐编码
<!DOCTYPE html>
<html lang="en">
<head>
<!-- Required meta tags -->
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Homemade</title>
<!-- Required program scripts -->
<script src="https://cdn.jsdelivr.net/npm/vue/dist/vue.js"></script>
<script src="https://code.jquery.com/jquery-3.5.1.js" integrity="sha256-QWo7LDvxbWT2tbbQ97B53yJnYU3WhH/C8ycbRAkjPDc=" crossorigin="anonymous"></script>
<!-- Style Sheets-->
<link rel="stylesheet" href="/styles/navBarStyle.css">
<link rel="stylesheet" href="/styles/myRecipesStyle.css">
<link rel="stylesheet" href="/styles/createRecipeStyle.css">
<link rel="stylesheet" href="/styles/errorMessageStyle.css">
</head>
<body>
<!-- Background image -->
<img id="background" src="/images/foodBackground.jpg" alt="">
<div id="newRecipeContainer">
<div id="closeButtonContainer">
<div id="backButton"><a id="back" href="/recipes/myRecipes">← My Recipes</a></div>
</div>
<form id="createRecipeForm" action="/recipes/createRecipe" method="POST" enctype="multipart/form-data">
<label id="formSubHeading">Create Your Homemade Recipe</label>
<%- include('../_partial/_messages'); -%>
<div id="recipeNameContainer">
<label id="recipeNameLabel">Title</label>
<input id="recipeNameInput" type="text" name="recipeName">
</div>
<div id="recipeImage">
<label id="recipeImageLabel">Add An Image of Your Meal</label>
<input id="recipeImageInput" type="file" accept="image/*" name="recipeImage"/>
<label id="recipeImageInputLabel" for="recipeImageInput" name="recipeImage">Choose A File</label>
</div>
<div id="recipeDescription">
<label id="recipeDescriptionLabel">Description</label>
<textarea id="recipeDescriptionInput" name="recipeDescription" cols="30" rows="10" maxlength="2000"></textarea>
</div>
<div class="ingredientsContainer">
<label id="ingredientsLabel">Ingredients</label>
<button id="addIngredientButton" type="button" onClick="addIngredient('allIngredients');">Add Another Ingredient</button>
<div id="allIngredients">
<div class="ingredientSet">
<input class="ingredientInput" type="text" name="ingredients[]">
</div>
</div>
</div>
<div class="directionsContainer">
<label id="directionsLabel">Directions</label>
<button id="addDirectionButton" type="button" onClick="addDirection('allDirections');">Add Another Direction</button>
<div id="allDirections">
<div class="directionSet">
<input class="directionInput" type="text" name="directions[]">
</div>
</div>
</div>
<div id="createRecipeButtonContainer">
<button id="createRecipeButton" type="submit">Create Recipe</button>
</div>
</form>
</div>
</body>
<!-- Required scripts to run app -->
<script src="/controls/newRecipeControl.js"></script>
<script src="/controls/errorMessageControl.js"></script>
</html>