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Apply toggle function to only clicked element using pure java script

This is my html code where i'm displaying data
<ul id="menu">
<li *ngFor="let category of componentContents.dashboardMenu;let i = index" >
<p (click)="toggle_visibility()"class="parent-menu">{{category.category}</p>
<ul id="{{(category.category).split(' ').join('-')}}" class="toggled"
*ngIf="category.subCategory.length > 0" style="display:none">
<li *ngFor="let subCat of category.subCategory">
<a routerLink={{subCat.router}} routerLinkActive="active"
{{subCat.subcategory}}</a>
</li>
</ul>
</li>
This is the function where i'm trying to display sub menus on click but all the sub menus of all p tags are getting displayed.I want to apply toggle function to only clicked p element.
toggle_visibility() {
var pm = document.getElementByClassName('parent-menu');
var e = document.getElementsByClassName('toggled');
for (let i = 0; i < pm.length; i++) {
if (e[i].style.display == 'block' || (e[i].style.display == '') {
e[i].style.display = 'none';
}
else {
e[i].style.display = 'block';
}
};
}
As i'm new to java script and angular 2. Need help to figure this out.

You should rather use
[style.display]="e[i].style.display == '' ? 'none' : 'block'"
(click)="toggle_visibility(i)"
toggle_visibility(i) {
this.e[i] = !this.e[i];
}
where e is an array with the same number of items as
componentContents.dashboardMenu

Using an active 'li' element to determine a video's source file

I tried creating a small video library where one div is split into two parts: 1) a menu on the left with the titles of the movies and 2) the rest of the div on the right being a video window that changes it's video source according to the selected title on the menu. I gave the li elements that housed the titles id's and used jQuery/JavaScript to retrieve the title and to assign a new video source based on that title, but it isn't working and I also can't claim to completely understand what I've done. The code is as follows:
HTML
<div class="miyazaki">
<div class="menu">
<ul>
<li><a id="Gulliver">Gulliver's Travels</a></li>
<li><a id="Howl">Howl's Moving Castle</a></li>
<li><a id="Kiki">Kiki's Delivery Service</a></li>
<li><a id="Castle">Castle of Cagoliostro</a></li>
<li><a id="Totoro">"My Neighbor Totoro</a></li>
<li><a id="Ponyo">Ponyo</a></li>
<li><a id="Mononoke">"Princess Mononoke</a></li>
<li><a id="Spirited">Spirited Away</a></li>
<li><a id="Sky">The Sky's Castle Laputa</a></li>
<li><a id="Nausicaa">Nausicaa Valley of the Wind</a></li>
<li><a id="Cat">"The Cat Returns</a></li>
</ul>
</div>
</div>
JavaScript
function Hayato() {
var movie = $("ul.menu li a.active");
if (movie.id == Gulliver || movie.id == null || movie.id == "") {
document.getElementsByClassName('window').video.source.src = Gulliver.mkv
}
else if (movie.id == Howl) {
document.getElementsByClassName('window').video.source.src = Howl.mkv
}
else if (movie.id == Kiki) {
document.getElementsByClassName('window').video.source.src = Kiki.mkv
}
else if (movie.id == Castle) {
document.getElementsByClassName('window').video.source.src = Castle.mkv
}
else if (movie.id == Totoro) {
document.getElementsByClassName('window').video.source.src = Totoro.mkv
}
else if (movie.id == Ponyo) {
document.getElementsByClassName('window').video.source.src = Ponyo.mkv
}
else if (movie.id == Mononoke) {
document.getElementsByClassName('window').video.source.src = Mononoke.mkv
}
else if (movie.id == Spirited) {
document.getElementsByClassName('window').video.source.src = Spirited.mkv
}
else if (movie.id == Sky) {
document.getElementsByClassName('window').video.source.src = Sky.mkv
}
else if (movie.id == Nausicaa) {
document.getElementsByClassName('window').video.source.src = Nausicaa.mkv
}
else (movie.id == Cat) {
document.getElementsByClassName('window').video.source.src = Cat.mkv
}
}
I'm not entirely sure this code is the best way to go about solving my problem, but it's the most logical progression I can think of.

This can all be condensed down considerably since most of the code stays the same in all cases. Also, your closing <ul> isn't a close tag and you are missing a closing <div>.
// Get all the <a> elements
var anchors = document.querySelectorAll(".menu a");
// Get a reference to the video element
var v = document.querySelector("video");
// Set up click event handlers for each
Array.prototype.slice.call(anchors).forEach(function(anchor){
anchor.addEventListener("click", function(evt){
// default video when no id is present
var d = "Gulliver.mkv";
// Use the default or the id
v.source = (!anchor.id) ? d : anchor.id + ".mkv";
console.log("video source is: " + v.source);
});
});
<div class="miyazaki">
<div class="menu">
<ul>
<li><a id="Gulliver">Gulliver's Travels</a></li>
<li><a id="Howl">Howl's Moving Castle</a></li>
<li><a id="Kiki">Kiki's Delivery Service</a></li>
<li><a id="Castle">Castle of Cagoliostro</a></li>
<li><a id="Totoro">"My Neighbor Totoro</a></li>
<li><a id="Ponyo">Ponyo</a></li>
<li><a>Porco Rosso</a></li>
<li><a id="Mononoke">"Princess Mononoke</a></li>
<li><a id="Spirited">Spirited Away</a></li>
<li><a id="Sky">The Sky's Castle Laputa</a></li>
<li><a id="Nausicaa">Nausicaa Valley of the Wind</a></li>
<li><a id="Cat">"The Cat Returns</a></li>
</ul>
</div>
</div>
<video></video>

As you also tagged jQuery here a working example for that:
$('.menu li a').on('click', function() {
var id = $(this).attr('id');
$('.window video source').attr('src', id + '.mkv');
});
Example
Note: Your html is invalid too. The ul is never closed

There's no need to use all these if blocks, you can do it in a one line statement.
You could just do it this way:
function Hayato() {
var movie = $("ul.menu li a.active").attr("id");
if(movie && movie !== "#")
document.getElementsByClassName('window')[0].video.source.src = movie + ".mkv";
}
Note:
In the code you used all the Strings are inavlid Strings, you should wrap them between two " or '.

Ajax redirecting when it is not supposed to [duplicate]

This question already has answers here:
jQuery ID selector works only for the first element
(7 answers)
Closed 6 years ago.
I've implemented a program something like a shopping cart where you would add products to the cart. I'm using ajax make the page dynamic so multiple products can be added to the cart without a page reload. For some reason, the first product in the list can be added correctly while the rest of products alway redirects to the controller url when it isn't supposed to.
View Code
<section class="grid grid--loading" id="portfoliolist">
<!-- Loader -->
<img class="grid__loader" src="~/Images/grid.svg" width="60" alt="Loader image" />
<!-- Grid sizer for a fluid Isotope (Masonry) layout -->
<div class="grid__sizer"></div>
<!-- Grid items -->
#foreach (var item in Model.ProductsList)
{
var pricetag = "pricegroup3";
if (item.Price <= 300)
{
pricetag = "pricegroup1";
}
else if (item.Price > 300 && item.Price <= 500)
{
pricetag = "pricegroup2";
}
<div class="grid__item #item.Type #pricetag">
<div class="slider">
#foreach (var image in Model.ProductImagesList.Where(m=>m.ProductID == item.Id))
{
<div class="slider__item"><img src="~/Images/Products/#image.Image" /></div>
}
</div>
<div class="meta">
<h3 class="meta__title">#item.Name</h3>
<span class="meta__brand">#item.Brand</span>
<span class="meta__price">R #item.Price</span>
</div>
<a class="action action--button action--buy" href="#Url.Action("AddToPlatform", "ProductPlatforms", new { ProdID = item.Id })" id="platformAdd" data-value="#item.Id"><i class="fa fa-shopping-cart"></i><span class="text-hidden">Add to Platform</span></a>
</div>
}
</section>
The last tag is what will be clicked on to add the product to the cart.
Script -Ajax
$("#platformAdd").click(function (e) {
e.preventDefault();
$.ajax({
type: "POST",
url: $(this).attr("href"),
success: toastr["success"]("Product added to Platform")
});
});
Controller function
public void AddToPlatform(int ProdID)
{
var currUser = User.Identity.GetUserId();
DateTime now = DateTime.Now;
var exists = ProductExists(ProdID);
if (exists == false)
{
ProductPlatform prodPlatform = new ProductPlatform()
{
ProductID = ProdID,
UserID = currUser,
ViewedStatus = false,
DateAdded = now
};
db.ProductPlatforms.Add(prodPlatform);
db.SaveChanges();
}
}
The ajax script function would call the controller function which will add the product to the cart. Since there are no redirects I can't seem to figure out why the ajax call redirects to the tag "href".
Thanks for any help!

You need to use class instead of id because ids are always unique.
$(".lnkAddProduct").click(function (e) {
e.preventDefault();
$.ajax({
type: "POST",
url: $(this).attr("href"),
success: function(){alert("ADDED");}
});
});

Deleting href when clicked on a link (a delete icon) beside it (Javascript help)

I have a link <a href="#"> and beside that there is a delete png icon (which is also <a href="#"> link.
So what I want is, when clicked on that delete icon, the link <a href="#"> should get deleted with a confirmation window.
So far I have got like,
html:
<ul>
<li>link <a class="delete" href="#" data-request="POST" >....</a></li>
</ul>
My javascript for data-request
var join_request = function(evnt){
evnt.preventDefault();
var $a = $(this);
var request = $a.data('request') || 'POST';
if (confirm("Are you sure want to delete it?")) {
$.ajax($a.attr('href'), {
type: request,
context: $a,
success: join_request_success
});
}
return false;
};
var join_request_success = function(data, a, b){
this.trigger('executed');
};
$(document).ready(function(){
$('a[data-request]').bind('click', join_request);
}
This doesn't seem to be working! When I am clicking on the delete icon, it is displaying the confirmation window but not doing anything.
Is there any other simple way of achieving this? If not, can anyone tell me where am I going wrong?
Thanks.

var join_request = function(evnt){
evnt.preventDefault();
var $a = $(this);
var request = $a.data('request') || 'POST';
if (confirm("Are you sure want to delete it?")) {
$.ajax($a.attr('href'), {
type: request,
context: $a,
error: join_request_success
});
}
return false;
};
var join_request_success = function(data, a, b){
this.trigger('executed');
this.prev().remove();
};
$(document).ready(function(){
$('a[data-request]').bind('click', join_request);
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<ul>
<li>link <a class="delete" href="#" data-request="POST" >....</a></li>
</ul>
Note that I had to change success: to error: for demonstration.

How to get which link has been clicked in jquery

Good day...
I have multiple links as below:
<li>Save</li>
<li>Save As</li>
<li>Save And Exit</li>
I wanna know which link has been clicked
I tried something like this:
if ($("#mmSaveForm").click() == "true") {
//do something
}
else if ($("mmSaveAs").click() == "true") {
//Do something
}
else if ($("#mmSaveExit").click() == "true") {
//Do something
}
I tried these links, questions & answers but they are not helping:
How can I get the button that caused the submit from the form submit event?
jQuery: how to get which button was clicked upon form submission?
how to detect which button is clicked using jQuery
jQuery - how to determine which link was clicked
I've been trying this the whole night, please help...
Thank you in advanced...

Why don't you target the class instead, grab the id and then use a switch statement.
$('.itemDisabled').on('click', function () {
var id = this.id;
switch(id) {
case 'mmSaveForm':
// code
break;
case 'mmSaveAs':
// code
break;
case 'mmSaveExit':
// code
break;
}
});

Try to use .is(selector) to identify the element which has been clicked,
$('a.noTxtSelect1').click(function(e){
e.preventDefault();
if($(this).is("#mmSaveForm")){
} else if($(this).is("#mmSaveAs")) {
} else if($(this).is("#mmSaveExit")) {
}
});

If your links have id attributes all starting with 'mm' you could use:
$('a[id^=mm]').on('click', function(){
console.log(this.id);
});
Or on one or more classes:
$('a.itemDisabled').on('click', function(){
-or-
$('a.itemDisabled.noTxtSelect1').on('click', function(){
In the click event, you can use switch to determine the link clicked, which you can fetch using this or $(this)
e.g.:
Demo Fiddle
$('a[id^=mm]').on('click', function () {
switch (this.id) {
case "mmSaveForm":
alert(this.id);
break;
case "mmSaveAs":
alert(this.id);
break;
case "mmSaveExit":
alert(this.id);
break;
}
});

You can use the [attr^="value"] ["starts with"] selector:
$('[id^="mmSave"]').click(function(event){
event.preventDefault();
var action = this.id;
// do your business
});

You're thinking about this the wrong way. In your
$(document).ready(function() {})
you register for click events. So something like
$(document).ready(function() {
$("#mmSaveForm").click(function() {
// handle the click
});
});

may be you can try this
$(function(){
$('.linkclass').click(function(){
var link_text = $(this).text();
alert('the clicked link text is '+ link_text);
});
});

Use common class like a itemDisabled for click event and get id ,
$(".itemDisabled").click(function (e) {
e.preventDefault();
var id = this.id;
if (id === "mmSaveForm") {
} else if (id === "mmSaveExit") {
} else {}
});

No need jquery please look this code
<!DOCTYPE html >
<html >
<head>
<script>
function clickbtn(t)
{
alert(t.id);
/*if(t.id==...)
{
dosomething();
}
else
{
dootherthing();
}
*/
}
</script>
</head>
<ul>
<li>Save</li>
<li>Save As</li>
<li>Save And Exit</li>
</ul>
<body>
</body>
</html>
It work ok .
Hope this help!

This is my html page (Django template):
<div class="col">
{% for blog in blogs %}
<div class="post">
<h3>{{ blog.title }}</h3>
<div class="date">
<p>Created: {{blog.date_created|date:'d M Y'}}</p>
</div>
<p>{{ blog.brief|safe }}</p>
<ul class="nav justify-content-end">
<li class="nav-item">
<a class="nav-link active" href="{% url 'blog:edit' pk=blog.pk %}">Edit</a>
</li>
<li class="nav-item">
<a class="nav-link" id="publish" href="{{blog.pk}}">Publish</a>
</li>
<li class="nav-item">
<a class="btn btn-danger" id="remove" href="{{blog.pk}}">Remove</a>
</li>
</ul>
<br>
</div>
{% endfor %}
</div>
In my javascript file, this is what have and it works.
$(document).ready(function() {
console.log("document is ready!!!")
$('#id_bloglist').on("click", 'a#publish,a#remove', function(e) {
e.preventDefault()
var pk = $(this).attr("href")
if ($(this)[0].id == 'remove'){
console.log("remove link clicked, calling deleteBlog with pk = " + pk)
}
else if ($(this)[0].id == 'publish'){
console.log("publish link clicked, calling publishBlog with pk = " + pk)
}
return false;
});
});