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<!DOCTYPE html> | ||
<html lang="en"> | ||
<head> | ||
<meta charset="UTF-8"> | ||
<meta name="viewport" content="width=device-width, initial-scale=1.0"> | ||
<title>Courses</title> | ||
<link href="https://cdn.jsdelivr.net/npm/[email protected]/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-QWTKZyjpPEjISv5WaRU9OFeRpok6YctnYmDr5pNlyT2bRjXh0JMhjY6hW+ALEwIH" crossorigin="anonymous"> | ||
</head> | ||
<body> | ||
<header> | ||
<nav class="navbar navbar-expand-lg bg-primary navbar-dark"> | ||
<div class="container-fluid"> | ||
<a class="navbar-brand" href="#">Navbar</a> | ||
<button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target="#navbarNavAltMarkup" aria-controls="navbarNavAltMarkup" aria-expanded="false" aria-label="Toggle navigation"> | ||
<span class="navbar-toggler-icon"></span> | ||
</button> | ||
<div class="collapse navbar-collapse" id="navbarNavAltMarkup"> | ||
<div class="navbar-nav"> | ||
<a class="nav-link active" aria-current="page" href="#">Home</a> | ||
<a class="nav-link" href="#">Features</a> | ||
<a class="nav-link" href="#">Pricing</a> | ||
<a class="nav-link disabled" aria-disabled="true">Disabled</a> | ||
</div> | ||
</div> | ||
</div> | ||
</nav> | ||
</header> | ||
<div class="container mt-5 col-6"> | ||
<div class="input-group mb-4"> | ||
<input type="text" id="inputtext"class="form-control" placeholder="Chapter Name" aria-label="Recipient's username" aria-describedby="button-addon2"> | ||
<button class="btn btn-outline-success" type="button" id="add" id="button-addon2">Add</button> | ||
</div> | ||
<ul class="list-group" id="parentlist" > | ||
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<li class="list-group-item d-flex justify-content-between my-2" id="list"><h4 class="flex-grow-1">Chapter1 </h4> | ||
<button class="btn btn-warning mx-5" onclick="editchapter(this)" >Edit</button> | ||
<button class="btn btn-danger " onclick="removechapter(this)">Remove</button></li> | ||
</ul> | ||
</div> | ||
<script> | ||
// to add an element into list | ||
let addBtn=document.getElementById("add"); | ||
addBtn.addEventListener('click',addchapter); | ||
let parentlist=document.getElementById('parentlist'); | ||
function addchapter(e) | ||
{ | ||
//to remove the empty message if there is | ||
//to get the entered input | ||
let currentInput=document.getElementById('inputtext'); | ||
if(currentInput.value=='') | ||
{ | ||
alert('you have not entered the task');//empty task cannot be inserted | ||
} | ||
// console.log(currentInput.value); | ||
//to create the li element | ||
else{ | ||
if(parentlist.children[0].className=="emptyMsg alert alert-danger") | ||
{ | ||
parentlist.children[0].remove(); | ||
} | ||
let newli=document.createElement('li'); | ||
// newli.classList.add("list-group-item"); | ||
newli.className="list-group-item d-flex justify-content-between my-2"; | ||
newli.id='list'; | ||
//adding text to li element | ||
newli.innerHTML=`<h4 class="flex-grow-1">${currentInput.value} </h4> | ||
<button class="btn btn-warning mx-5" onclick="editchapter(this)" >Edit</button> | ||
<button class="btn btn-danger " onclick="removechapter(this)" >Remove</button>`; | ||
//to append the created element into ul | ||
parentlist.appendChild(newli); | ||
currentInput.value='';//cleraing the input field | ||
} | ||
} | ||
//to remove the element | ||
function removechapter(currentElement) | ||
{ | ||
currentElement.parentElement.remove();//removing the parent element | ||
if(parentlist.children.length<=0) | ||
{ | ||
let newmsg=document.createElement('h4'); | ||
newmsg.textContent="Nothing is here please add a chapter! "// to give message if there are no element | ||
parentlist.appendChild(newmsg);//append message to parent | ||
newmsg.className='emptyMsg alert alert-danger';//styling | ||
} | ||
} | ||
//to edit the element | ||
function editchapter(currentElement) | ||
{ | ||
if(currentElement.textContent=='Done') | ||
{ | ||
currentElement.textContent='Edit'; | ||
currentChapter=currentElement.previousElementSibling.value; | ||
let currentheading=document.createElement('h4'); | ||
currentheading.textContent= currentChapter; | ||
currentheading.className='flex-grow-1'; | ||
currentElement.parentElement.replaceChild( currentheading,currentElement.previousElementSibling); | ||
} | ||
else{ | ||
currentElement.textContent='Done'; | ||
currentChapter=currentElement.previousElementSibling.textContent; | ||
let currentInput=document.createElement('input'); | ||
currentInput.value= currentChapter; | ||
currentInput.placeholder="Chapter Name" | ||
currentInput.className="form-control"; | ||
currentElement.parentElement.replaceChild(currentInput,currentElement.previousElementSibling); | ||
} | ||
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} | ||
</script> | ||
</body> | ||
</html> |