How to make minus icon disappear using for in loop - javascript

When click on save button function myfunc2 will be exceuted which use a for in loop to iterate the minus array. This array conatain all the minus icon. i set style.display = 'none' and expect when i click the save button the icon will disappear, but it didn't work. i dont know what went wrong
const minus = document.getElementsByClassName('minus');
const item = document.getElementsByClassName('item');
const input = document.getElementsByTagName('input');
//right
const save_btn = document.getElementById('save');
save_btn.addEventListener('click',myfunc2);
//delete all minus
function myfunc2() {
for(let x in minus) {
minus[x].style.display = 'none';
}
}
* {
box-sizing: border-box;
}
.fa {
padding: 5px;
border-radius: 50%;
border: 1px solid blue;
}
.item {
gap: 10px;
}
a:hover {
cursor: pointer;
}
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
<!--font awe-->
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font-awesome.min.css">
<!--bs-->
<link href="https://cdn.jsdelivr.net/npm/bootstrap#5.1.3/dist/css/bootstrap.min.css" rel="stylesheet">
<!--js-->
<script src="https://cdn.jsdelivr.net/npm/bootstrap#5.1.3/dist/js/bootstrap.bundle.min.js"></script>
<link rel="stylesheet" href="style.css">
</head>
<body>
<div class="container mt-3">
<h1>Bucket list</h1>
<button type="submit" class="btn btn-primary mb-3">Add item</button>
<form>
<!--d-flex overide item-->
<div class="item d-flex mb-3">
<input type="text" class="form-control form-control">
<i class="fa fa-minus"></i>
<i class="fa fa-pencil"></i>
</div>
<div class="item d-flex mb-3">
<input type="text" class="form-control form-control">
<i class="fa fa-minus"></i>
<i class="fa fa-pencil"></i>
</div>
<div class="item d-flex mb-3">
<input type="text" class="form-control form-control">
<i class="fa fa-minus"></i>
<i class="fa fa-pencil"></i>
</div>
<button type="submit" class="btn btn-success save">Save</button>
<button type="submit" class="btn btn-danger">Edit</button>
</form>
</div>
<script src="js.js"></script>
</body>
</html>


There are 2 things you are doing wrong. First of all,
const save_btn = document.getElementByClassName('save');
should be
const save_btn = document.getElementsByClassName('save');
Secondly, save_btn would now be an array since you have gotten multiple elements by class name (hence the getElementsByClassName) plural form.
The getElementsByClassName method of Document interface returns an array-like object of all child elements which have all of the given class name(s). (doc)
So calling save_btn.addEventListener('click',myfunc2); wouldn't work since you are trying to assign this to an array. You either use
save_btn[0].addEventListener('click',myfunc2);
or, a more recommended approach, give the button an id and use getElementById() (doc)
Changed snippet below:
const minus = document.getElementsByClassName('minus');
const item = document.getElementsByClassName('item');
const input = document.getElementsByTagName('input');
//right
const save_btn = document.getElementById('saveBtn');
save_btn.addEventListener('click', myfunc2);
//delete all minus
function myfunc2() {
[].forEach.call(minus, function(m) {
m.style.display = 'none';
});
}
* {
box-sizing: border-box;
}
.fa {
padding: 5px;
border-radius: 50%;
border: 1px solid blue;
}
.item {
gap: 10px;
}
a:hover {
cursor: pointer;
}
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
<!--font awe-->
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font-awesome.min.css">
<!--bs-->
<link href="https://cdn.jsdelivr.net/npm/bootstrap#5.1.3/dist/css/bootstrap.min.css" rel="stylesheet">
<!--js-->
<script src="https://cdn.jsdelivr.net/npm/bootstrap#5.1.3/dist/js/bootstrap.bundle.min.js"></script>
<link rel="stylesheet" href="style.css">
</head>
<body>
<div class="container mt-3">
<h1>Bucket list</h1>
<button type="submit" class="btn btn-primary mb-3">Add item</button>
<form>
<!--d-flex overide item-->
<div class="item d-flex mb-3">
<input type="text" class="form-control form-control">
<i class="fa fa-minus"></i>
<i class="fa fa-pencil"></i>
</div>
<div class="item d-flex mb-3">
<input type="text" class="form-control form-control">
<i class="fa fa-minus"></i>
<i class="fa fa-pencil"></i>
</div>
<div class="item d-flex mb-3">
<input type="text" class="form-control form-control">
<i class="fa fa-minus"></i>
<i class="fa fa-pencil"></i>
</div>
<button type="button" id="saveBtn" class="btn btn-success save">Save</button>
<button type="submit" class="btn btn-danger">Edit</button>
</form>
</div>
<script src="js.js"></script>
</body>
</html>

Related

how do i make item in a bucket list disappear

I choose element div with classname item using property querySelector('.item), and expect this element to disapear when I click element a.
however it didn't work when style.display is set to none. I dont know what went wrong
const minus = document.querySelector('a');
//const item = document.getElementsByClassName('item');
const item = document.querySelector('.item');
const input = document.querySelector('input');
minus.addEventListener('click',myfunc);
function myfunc(){
//return the display property
item.style.display = 'none';
}
* {
box-sizing: border-box;
}
.fa {
padding: 5px;
border-radius: 50%;
border: 1px solid blue;
}
.item {
gap: 10px;
}
a:hover {
cursor: pointer;
}
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
<!--font awe-->
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font-awesome.min.css">
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<link href="https://cdn.jsdelivr.net/npm/bootstrap#5.1.3/dist/css/bootstrap.min.css" rel="stylesheet">
<!--js-->
<script src="https://cdn.jsdelivr.net/npm/bootstrap#5.1.3/dist/js/bootstrap.bundle.min.js"></script>
<link rel="stylesheet" href="style.css">
</head>
<body>
<div class="container mt-3">
<h1>Bucket list</h1>
<button type="submit" class="btn btn-primary mb-3">Add item</button>
<form>
<div class="item d-flex mb-3">
<input type="text" class="form-control form-control">
<i class="fa fa-minus"></i>
<i class="fa fa-pencil"></i>
</div>
<button type="submit" class="btn btn-success">Save</button>
<button type="submit" class="btn btn-danger">Edit</button>
</form>
</div>
<script src="js.js"></script>
</body>
</html>

.d-flex uses !important which overrides the display: none, It works when you remove it:
const minus = document.querySelector('a');
//const item = document.getElementsByClassName('item');
const item = document.querySelector('.item');
const input = document.querySelector('input');
minus.addEventListener('click',myfunc);
function myfunc(){
//return the display property
item.style.display = 'none';
}
* {
box-sizing: border-box;
}
.fa {
padding: 5px;
border-radius: 50%;
border: 1px solid blue;
}
.item {
gap: 10px;
}
a:hover {
cursor: pointer;
}
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
<!--font awe-->
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font-awesome.min.css">
<!--bs-->
<link href="https://cdn.jsdelivr.net/npm/bootstrap#5.1.3/dist/css/bootstrap.min.css" rel="stylesheet">
<!--js-->
<script src="https://cdn.jsdelivr.net/npm/bootstrap#5.1.3/dist/js/bootstrap.bundle.min.js"></script>
<link rel="stylesheet" href="style.css">
</head>
<body>
<div class="container mt-3">
<h1>Bucket list</h1>
<button type="submit" class="btn btn-primary mb-3">Add item</button>
<form>
<div class="item mb-3">
<input type="text" class="form-control form-control">
<i class="fa fa-minus"></i>
<i class="fa fa-pencil"></i>
</div>
<button type="submit" class="btn btn-success">Save</button>
<button type="submit" class="btn btn-danger">Edit</button>
</form>
</div>
<script src="js.js"></script>
</body>
</html>
Or, instead of completely removing it you can set property display: none as !important as well so d-flex won't be able to override it item.style.setProperty("display", "none", "important"):
const minus = document.querySelector('a');
//const item = document.getElementsByClassName('item');
const item = document.querySelector('.item');
const input = document.querySelector('input');
minus.addEventListener('click',myfunc);
function myfunc(){
//return the display property
item.style.setProperty("display", "none", "important");
}
* {
box-sizing: border-box;
}
.fa {
padding: 5px;
border-radius: 50%;
border: 1px solid blue;
}
.item {
gap: 10px;
}
a:hover {
cursor: pointer;
}
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
<!--font awe-->
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font-awesome.min.css">
<!--bs-->
<link href="https://cdn.jsdelivr.net/npm/bootstrap#5.1.3/dist/css/bootstrap.min.css" rel="stylesheet">
<!--js-->
<script src="https://cdn.jsdelivr.net/npm/bootstrap#5.1.3/dist/js/bootstrap.bundle.min.js"></script>
<link rel="stylesheet" href="style.css">
</head>
<body>
<div class="container mt-3">
<h1>Bucket list</h1>
<button type="submit" class="btn btn-primary mb-3">Add item</button>
<form>
<div class="item d-flex mb-3">
<input type="text" class="form-control form-control">
<i class="fa fa-minus"></i>
<i class="fa fa-pencil"></i>
</div>
<button type="submit" class="btn btn-success">Save</button>
<button type="submit" class="btn btn-danger">Edit</button>
</form>
</div>
<script src="js.js"></script>
</body>
</html>

Unable to properly add TR to HTML from JS script

I keep getting an indexing error while trying to add TR tags to my HTML using the innerHTML attribute. This is what the JS script looks like.
var myTbody = document.querySelector(".table");
var button = document.querySelector(".add-stock");
var input = document.querySelector(".stock-input");
button.addEventListener("click", function () {
var td = document.querySelectorAll("td");
var row = myTbody.insertRow(td.length + 1);
var cell_univeral = row.insertCell(td.length - 1);
cell_univeral.innerHTML = input.value;
});
And this is the related html document:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>Technical</title>
<script
src="https://code.jquery.com/jquery-3.6.0.js"
integrity="sha256-H+K7U5CnXl1h5ywQfKtSj8PCmoN9aaq30gDh27Xc0jk="
crossorigin="anonymous"
></script>
<link
rel="stylesheet"
href="{{url_for('static', filename='css/technical.css')}}"
/>
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href="https://cdn.jsdelivr.net/npm/bootstrap#5.1.3/dist/css/bootstrap.min.css"
rel="stylesheet"
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crossorigin="anonymous"
/>
</head>
<body>
<nav class="navbar navbar-expand-lg navbar-dark bg-dark">
<div class="container-fluid">
<a class="navbar-brand" href="/">Home</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"
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<a class="nav-link disabled">More</a>
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<div id="symbol" class="form-text">Add stocks one at a time</div>
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Note that for the first two click events i have no problems whatsoever though i get this error when i click again
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Having problem targeting the text inside li

I am having a problem to find a selector for the text inside my "li" to target with JavaScript. The problem is that I have a nested "span" element with two icons in my "li". That gives me a problem just to "li" to target it, since, it also covers the "span" with icons. What I am trying to do is add {text-decoration: 'line-through'} when the 'check' icon is clicked. and remove the text, when 'trash'icon is clicked. As I said, my problem is targeting the text within the "li" .
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<link
rel="stylesheet"
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integrity="sha384-AYmEC3Yw5cVb3ZcuHtOA93w35dYTsvhLPVnYs9eStHfGJvOvKxVfELGroGkvsg+p"
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/>
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<h1>Task List</h1>
<form id="addTask">
<input type="text" id="InputText" placeholder="Enter your task..." />
</form>
<div class="task-list">
<ul>
<li>
<span id="iconPkg"
><i class="fas fa-check"></i> <i class="fas fa-trash-alt"></i
></span>
</li>
</ul>
</div>
</div>
</div>
<button class="btn">Clear List</button>
<script src="app.js"></script>
</body>
</html>
app.js
const inputText = document.querySelector("#InputText");
const addTask = document.querySelector("#addTask");
const taskList = document.querySelector(".task-list");
const iconPkg = document.querySelector("#iconPkg");
const crossOut = document.querySelector(".fa-check");
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addTask.addEventListener("submit", (e) => {
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taskList.innerHTML += `
<div class="task-list">
<ul>
<li>${inputText.value}
<span
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</li>
</ul>
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`;
iconPkg.removeAttribute("display");
inputText.value = "";
});
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});
I appreciate your help.

You can only select elements and pseudo-elements/classes. Therefore you must wrap it in an element. A span element should do the trick in this case:
const inputText = document.querySelector("#InputText");
const addTask = document.querySelector("#addTask");
const taskList = document.querySelector(".task-list");
const iconPkg = document.querySelector("#iconPkg");
const crossOut = document.querySelector(".fa-check");
const deleteItem = document.querySelector(".fa-trash-alt");
let LIText = document.querySelector(".task-list > ul > li > span");
addTask.addEventListener("submit", (e) => {
e.preventDefault();
taskList.innerHTML += `
<div class="task-list">
<ul>
<li><span>${inputText.value}</span>
<span
><i class="fas fa-check"></i> <i class="fas fa-trash-alt"></i
></span>
</li>
</ul>
</div>
`;
iconPkg.removeAttribute("display");
inputText.value = "";
});
crossOut.addEventListener("click", () => {
LIText.style.textDecoration = "line-through";
});
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<link
rel="stylesheet"
href="https://pro.fontawesome.com/releases/v5.10.0/css/all.css"
integrity="sha384-AYmEC3Yw5cVb3ZcuHtOA93w35dYTsvhLPVnYs9eStHfGJvOvKxVfELGroGkvsg+p"
crossorigin="anonymous"
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<link rel="stylesheet" href="style.css" />
<title>To Do List</title>
</head>
<body>
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<div class="list-container">
<h1>Task List</h1>
<form id="addTask">
<input type="text" id="InputText" placeholder="Enter your task..." />
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<div class="task-list">
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<span id="iconPkg"
><i class="fas fa-check"></i> <i class="fas fa-trash-alt"></i
></span>
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</div>
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<script src="app.js"></script>
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<i class="p2 fa fa-bell fa-stack-1x xfa-inverse"></i>
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Hook into the Dropdown events
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Codeply

How to disable a bootstrap div which uses button class

How to disable a bootstrap div which uses button class. Button to be disabled using javascript based on some conditions
This is my code for button which is to be disabled using js:
<div class="btn-group btn-group-justified">
<a href="#" class="btn btn-info col-sm-3">
<i class="glyphicon glyphicon-send" ></i>
<br>
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The div can be hidden in this way---
$('.zz').css('display', 'none');
<html>
<head>
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="http://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js"></script>
<script src="http://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/js/bootstrap.min.js"></script>
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<body>
<div class="btn-group btn-group-justified zz" id="btn-disable">
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</body>
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<html>
<head>
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="http://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js"></script>
<script src="http://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/js/bootstrap.min.js"></script>
</head>
<body>
<div class="btn-group btn-group-justified zz" id="btn-disable">
<a href="#" class="btn btn-info col-sm-3" >
<i class="glyphicon glyphicon-send" ></i><br>
Send
</a>
</div>
</body>
</html>
NOW IN THIS WAY YOU CAN DISABLE IT
<html>
<head>
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="http://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js"></script>
<script src="http://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/js/bootstrap.min.js"></script>
</head>
<body>
<div class="btn-group btn-group-justified zz" id="btn-disable">
<a href="#" class="btn btn-info col-sm-3" >
<i class="glyphicon glyphicon-send" ></i><br>
Send
</a>
<script type="text/javascript">
$('.zz').click(function(){
$(".zz *").attr("disabled", "disabled").off('click');
});
</script>
</div>
</body>
</html>
As you are just beginning with js and xml.
This example can be helpful
Now if you want to disable the button based on some value do it like this--
NOTE
this just a rough way to give you some idea.
In this example you have two value hi and bye which are coming from your xml and getting displayed on the HTML page. So based on that value you are disabling the div.
<html>
<head>
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="http://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js"></script>
<script src="http://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/js/bootstrap.min.js"></script>
</head>
<body>
<div class="btn-group btn-group-justified zz2" id="btn-disable2">
<a href="#" class="btn btn-info col-sm-3" >
<i class="glyphicon glyphicon-send" ></i><br>
bye
</a>
</div>
<div class="btn-group btn-group-justified zz1" id="btn-disable1">
<a href="#" class="btn btn-info col-sm-3" >
<i class="glyphicon glyphicon-send" ></i><br>
hi
</a>
</div>
<script type="text/javascript">
var node = document.getElementById('btn-disable2');
textContent = node.textContent;
alert($.trim(textContent));
if ($.trim(textContent) == 'bye') {
$(".zz2 *").attr("disabled", "disabled").off('click');
}
var node1 = document.getElementById('btn-disable1');
textContent1 = node1.textContent;
alert($.trim(textContent1));
if ($.trim(textContent1) == 'bye') {
$(".zz1 *").attr("disabled", "disabled").off('click');
}
</script>
</body>
</html>

Try this :
document.getElementsByClassName("btn")[0].style.pointerEvents = "none";
var timestampArray = document.getElementsByClassName("btn");
for(var i = (timestampArray.length - 1); i >= 0; i--)
{
timestampArray[i].style.pointerEvents = "none";
}
Working fiddle

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