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I want to show only one input clicked (on vue.js)

I would like to show an input on the click, but being in a for loop I would like to show only the clicked one
<div v-for="(todo, n) in todos">
<i class="fas fa-minus ml-2"></i>
<li class="mt-2 todo">
{{ todo }}
</li>
<li class="button-container">
<button class="ml-1 btn btn-primary rounded-circle btn-sm" v-if="isHidden" v-on:click="isHidden = false"><i
class="THIS-CLICK"></i></button>
<input class="ml-5 border border-primary rounded" v-if="!isHidden" v-model="todo">
<button class="ml-1 btn btn-success rounded-circle btn-sm" v-if="!isHidden" v-on:click="isHidden = true"
#click="modifyTodo(n, todo)"><i class="far fa-save"></i></button>
</li>
</div>
I would like that on clicking on THIS-CLICK, only one input (that of the button clicked) is visible, but being in a for loop I don't know if it can be done

I would suggest to change the structure a bit in your app. You can clean up your code a lot by using v-if inside the button instead of two different buttons.
Also, moving as much javascript out from the markup as possible is a good practice.
I have an example below where this is done.
Regarding your question, you would have to add the key to each todo item.
new Vue({
el: "#app",
data() {
return {
todos: [{
name: 'wash hands',
isHidden: true
},
{
name: 'Stay home',
isHidden: true
}
],
};
},
methods: {
toggleTodo(n, todo) {
const hidden = todo.isHidden;
if (hidden) {
this.modifyTodo(n, todo);
todo.isHidden = false;
} else {
todo.isHidden = true;
}
},
modifyTodo(n, todo) {
//Some logic...
}
},
})
<script src="https://cdnjs.cloudflare.com/ajax/libs/vue/2.5.17/vue.min.js"></script>
<div id="app">
<div v-for="(todo, n) in todos">
<i class="fas fa-minus ml-2"></i>
<li class="mt-2 todo">
{{ todo.name }}
</li>
<li class="button-container">
<input class="ml-5 border border-primary rounded" v-if="!todo.isHidden" v-model="todo.name">
<button #click="toggleTodo(n, todo)">
<i v-if="todo.isHidden" class="THIS-CLICK">click-this</i>
<i v-else class="far fa-save">save</i>
</button>
</li>
</div>
</div>
If you cannot do this, you could go with adding a new key to data like: hiddenTodos that would be an array of ids/a unique identifier to the todo you selected to hide.
in the template, it would be something like this:
<button #click="hiddenTodos.push(todo)">
...
<div v-if="hiddenTodos.includes(todo)"

jQuery sort cards with up/down arrows

I am using Bootstrap cards on a page, where I want those cards to be sorted using up and down arrows. Every card has arrows in its header, to move it up or down in the layout. But of course, when it gets moved to the top, the up arrow should be gone, likewise for when it hits the bottom.
I've tried using if statements in this style:
// Result: Is never executed.
if(!$(card).find('.sort-down')) {}
// Result: Is always executed.
if($(card).not(':has(.sort-down)') {}
Where $(card) is the div containing the complete card that is being moved.
For example, my complete "move down" code block.
$(document).on('click', '.sort-down', function(e) {
e.preventDefault();
let card = $(this).closest('.card');
let sort_id = $(card).attr('data-sort');
let next_sort_id = Number(sort_id) + 1;
$('[data-sort]').each(function(index, value) {
if($(value).attr('data-sort') == next_sort_id) {
$(value).after($(card));
$(value).attr('data-sort', sort_id);
$(card).attr('data-sort', next_sort_id);
// Change buttons
if($(card).attr('data-sort') == sortCount - 1) {
$(card).find('.sort-down').remove();
if(!$(card).find('.sort-up')) {
// Insert up arrow
}
} else {
if(!$(card).find('.sort-up')) {
// Insert up arrow
}
if(!$(card).find('.sort-down')) {
// Insert down arrow
}
}
if($(value).attr('data-sort') == 0) {
$(value).find('.sort-up').remove();
if(!$(value).find('.sort-down')) {
// Insert down arrow
}
} else {
if(!$(value).find('.sort-down')) {
// Insert down arrow
}
if(!$(value).find('.sort-up')) {
// Insert up arrow
}
}
return false;
}
});
});
A little bit of the HTML so you can get an idea what classes/attributes my jQuery is selecting.
<div class="card mb-3" data-sort="0">
<div class="card-header">
Tekstveld
<button type="button" class="btn btn-sm btn-primary float-right mr-1 sort-down"><i data-feather="arrow-down" width="16" height="16"></i></button>
</div>
<div class="card-body p-0">
<div id="editor"></div>
</div>
</div>
As I usually overcomplicate things, and get the result of it not even working, I'm hoping you could help me with either a simple or more advanced working solution of getting this done.

Using data-sort attribute as a sorting index could be more useful for "Global" sorting or filtering. Like when we click on one button to sort them all based on that property value.
But here, a less complicated alternative is to use jQuery default methods like : next(),prev(),closest(),insertAfter(),insertBefore()
$( document ).ready(function() {
setButtons();
$(document).on('click', '.sort-down', function(e) {
var cCard = $(this).closest('.card');
var tCard = cCard.next('.card');
cCard.insertAfter(tCard);
setButtons();
resetSort();
});
$(document).on('click', '.sort-up', function(e) {
var cCard = $(this).closest('.card');
var tCard = cCard.prev('.card');
cCard.insertBefore(tCard);
setButtons();
resetSort();
});
function resetSort(){
var i=0;
$('.card').each(function(){
//$(this).data('sort',i);
$(this).attr("data-sort", i);
i++;
});
}
function setButtons(){
$('button').show();
$('.card:first-child button.sort-up').hide();
$('.card:last-child button.sort-down').hide();
}
function resetSort(){
var i=0;
$('.card').each(function(){
//$(this).data('sort',i);
$(this).attr("data-sort", i);
i++;
});
}
});
<link href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/5.11.2/css/all.min.css" rel="stylesheet"/>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<div class="container">
<div class="card mb-3" data-sort="0">
<div class="card-header">
Tekstveld
<button type="button" class="btn btn-sm btn-primary float-right mr-1 sort-down"><i class="fas fa-caret-down"></i></button>
<button type="button" class="btn btn-sm btn-primary float-right mr-1 sort-up"><i class="fas fa-caret-up"></i></button>
</div>
<div class="card-body p-0">
<div class="editor"></div>
</div>
</div>
<div class="card mb-3" data-sort="1">
<div class="card-header">
Voorbeeld
<button type="button" class="btn btn-sm btn-primary float-right mr-1 sort-down"><i class="fas fa-caret-down"></i></button>
<button type="button" class="btn btn-sm btn-primary float-right mr-1 sort-up"><i class="fas fa-caret-up"></i></button>
</div>
<div class="card-body p-0">
<div class="editor"></div>
</div>
</div>
<div class="card mb-3" data-sort="2">
<div class="card-header">
Lorem ipsum
<button type="button" class="btn btn-sm btn-primary float-right mr-1 sort-down"><i class="fas fa-caret-down"></i></button>
<button type="button" class="btn btn-sm btn-primary float-right mr-1 sort-up"><i class="fas fa-caret-up"></i></button>
</div>
<div class="card-body p-0">
<div class="editor"></div>
</div>
</div>
</div>
[UPDATE] : The setButtons() function would hide the non functional buttons when the div reach the limit.
Notice that I added another function resetSort() to reorder those data-sort values. Just in case, you need it for global sorting.

passing a string argument into angularjs ng-click function

Not sure how to do this, but I would like to pass a string as an argument into ng-click and then us it as a conditional in the function. so something like this?
<div class="row">
<div class="col-md-12 text-center mb-5">
<div class="btn-group">
<button class="btn btn-primary" ng-click=""><span class="ion-plus-circled mr-2"></span>New</button>
<button class="btn btn-outline-primary" ng-click="filter_emails('inbox')"><span class="ion-archive mr-2"></span>Inbox</button>
<button class="btn btn-outline-primary" ng-click=""><span class="ion-paper-airplane align-middle mr-2"></span>Shielded</button>
</div>
</div>
</div>
and then in my controller:
$scope.filter_emails = function(category) {
if (category == "inbox") {
$scope.grouped = group(inbox($scope.emails));
}
else {
$scope.grouped = group($scope.emails);
}
}
This is not working or I obviously wouldn't be posting the question, so what would the correct approach to this?

If you want to pass a string enclose it within quotes
ng-click="filter_emails('inbox')"

Jplayer Playlist add on check box selected

I want to add playlist to jplayer using checkbox and when i click the checkbox the url has to get added to jplayer playlist,i am having url when i click the checkbox i am getting particular url but i am unable to add to myplaylist please any one help me, when i add it show me undefined
//This array object
var playList = new Array();
//this check box selected event, when i click on checkbox i am having item which bring the url "http://www.jplayer.org/audio/ogg/TSP-01-Cro_magnon_man.ogg"
self.Selected= function (item) {
var url = Voiceurl();
playList.push(url);
console.log(playList);
//this function i am calling to add to playlist
JplayerWithPlaylist(playList)
}
function JplayerWithPlaylist(playList) {
console.log(playList);
var cssSelector = {
jPlayer: "#jquery_jplayer_1",
cssSelectorAncestor: "#jp_container_1"
};
var options = {
swfPath: "./js",
supplied: "oga"
};
var myPlaylist = new jPlayerPlaylist(cssSelector, playList, options);
for (i = 0; i < playList.length; i++) {
myPlaylist.add(playList[i])
};
};
<div id="jquery_jplayer_1" class="jp-jplayer"></div>
<div id="jp_container_1" class="jp-audio">
<div class="jp-type-playlist">
<div class="jp-gui jp-interface">
<div class="my-row btn-group jp-controls">
<button href="javascript:;" class="btn btn-default glyphicon glyphicon-step-backward jp-previous" tabindex="1"></button>
<button href="javascript:;" class="btn btn-default glyphicon glyphicon-play jp-play" tabindex="1"></button>
<button href="javascript:;" class="btn btn-default glyphicon glyphicon-pause jp-pause" tabindex="1"></button>
<button href="javascript:;" class="btn btn-default glyphicon glyphicon-step-forward jp-next" tabindex="1"></button>
<button href="javascript:;" class="btn btn-default glyphicon glyphicon-stop jp-stop" tabindex="1"></button>
<button href="javascript:;" class="btn btn-default glyphicon glyphicon-volume-off jp-mute" tabindex="1" title="mute"></button>
<button href="javascript:;" class="btn btn-default glyphicon glyphicon-volume-down jp-unmute" tabindex="1" title="unmute"></button>
<button href="javascript:;" class="btn btn-default glyphicon glyphicon-volume-up jp-volume-max" tabindex="1" title="max volume"></button>
</div>
</div>
<div class="jp-playlist">
<ul class="list-unstyled">
<li></li>
</ul>
</div>
</div>

Please read http://jplayer.org/latest/demo-02-jPlayerPlaylist/.
Why are you creating a new Playlist on each add? This is very expensive and will just overwrite your other one.
Create the playlist on page load and add to the playlist on checkbox ticked.
It seems like you push a url onto playlist and then add each url to the playlist which is incorrect.
The add() method for jPlayerPlaylist takes an object and not a string as it's parameter:
E.g.
myPlaylist.add({
title:"Your Face",
artist:"The Stark Palace",
mp3:"http://www.jplayer.org/audio/mp3/TSP-05-Your_face.mp3",
oga:"http://www.jplayer.org/audio/ogg/TSP-05-Your_face.ogg",
poster: "http://www.jplayer.org/audio/poster/The_Stark_Palace_640x360.png"
});
Also item is unused in your function.
Try this:
$(function() {
var jPlayerPlaylistConfig = {
cssSelector: {
jPlayer: "#jquery_jplayer_1",
cssSelectorAncestor: "#jp_container_1"
},
options: {
swfPath: "./js",
supplied: "oga"
},
playlist: []
};
var myPlaylist = new jPlayerPlaylist(jPlayerPlaylistConfig.cssSelector, jPlayerPlaylistConfig.playList, jPlayerPlaylistConfig.options);
//this check box selected event, when i click on checkbox i am having item which bring the url "http://www.jplayer.org/audio/ogg/TSP-01-Cro_magnon_man.ogg"
self.Selected = function () {
var url = Voiceurl();
console.log(url); //Make sure URL actually exists
myPlaylist.add({
mp3: url,
});
}
});
Ask me if you need more help.

JAVA: Deleting a div generated by a for loop

How do you delete a div that is generated by a for loop? I have this code that generates divs:
EDIT: I have tried the changes of #Andrew Liberio but what happened is that my applicant divs have scattered all over the place. This is the new code and the script as well. Notice how I had put the ending semicolon of the for loop in order to get put the the index in the ajax. (Not seen in the code block for some reason but it goes like this >/script> <%}%>
<% ApplicantDAO applicantDAO = new ApplicantDAO();%>
<% for (int i = 0; i < applicantDAO.viewApplicant().size(); i++) {%>
<div class="column">
<div class="col-sm-3 col-xs-4">
<div class="list-group">
<a class="list-group-item active">
<img src = "th_1x1.jpg" class = "img-responsive" alt = "Responsive Image" width = "100%" height ="100">
<h4 class="list-group-item-heading" id="guardName<%=+i%>" id="guardName<%=+i%>"><%=applicantDAO.viewApplicant().get(i).getApplicantFirstName() + " "%>
<%=applicantDAO.viewApplicant().get(i).getApplicantLastName()%></h4>
</a>
<a class="list-group-item">
<p class="list-group-item-text" id="applyingFor<%=+i%>" id="applyingFor<%=+i%>"><%=applicantDAO.viewApplicant().get(i).getApplyingFor()%></p>
</a>
<a class="list-group-item" data-toggle="modal" href="#moreDetails<%=+i%>">
<button class="btn btn-primary btn-lg btn-block" id="moreDetails">More Details</button>
</a>
<a class="list-group-item">
<button type="button" class="btn btn-default" aria-label="Left Align">
<span class="glyphicon glyphicon-ok" aria-hidden="true"></span>
</button>
<button type="button" class="btn btn-default" aria-label="Left Align">
<span class="glyphicon glyphicon-remove" aria-hidden="true"></span>
</button>
</a>
<script>
$(".delete").on("click", function () {
var id = $(this).attr("delete<%=applicantDAO.viewApplicant().get(i).getApplicantID()%>"); //get the id of the row
$.post("url_to_servlet_responsible_to_exclude_item", {
tId: id,
someOtherData: "anyData"
}).done(function () {
//if everything went ok,
//delete the div
$("div#" + id).remove();
});
})
</script>
But I dont know how to delete it at the same time delete it at the database. I use a jsp and servlet. This is my code for delete:
public boolean rejectApplicant(Applicant RejectedApplicant) {
try {
DBConnectionFactory myFactory = DBConnectionFactory.getInstance();
Connection conn = myFactory.getConnection();
String query = "delete from applicant where applicantID = ?";
PreparedStatement pstmt = conn.prepareStatement(query);
int rows = pstmt.executeUpdate();
conn.close();
pstmt.close();
return true;
} catch (SQLException ex) {
Logger.getLogger(ApplicantDAO.class.getName()).log(Level.SEVERE, null, ex);
}
return false;
}
I think that the same logic applies when transferring the values of the div to the database. The page is an applicant page where applicants are screened then if they do not pass, they will be removed and when they are accepted, the values will be passed to the database. Please suggest on what should I do. I already searched javascript and jquery but I just dont understand the terms like nodes etc. Any help or leads would be appreciated. Thank you!

You could pass an id to each div or/and to each button as #LAROmega suggested.
<div class="column" id="<%=applicantDAO.viewApplicant().get(i).getApplicantId()">
<div class="col-sm-3 col-xs-4">
...
<button type="button" class="btn btn-default delete" aria-label="Left Align" id="<%=applicantDAO.viewApplicant().get(i).getApplicantId()">
<span class="glyphicon glyphicon-remove" aria-hidden="true"></span>
</button>
Then, you could use this script to delete the row using AJAX.
$(".delete").on("click", function(){
var id = $(this).attr("id"); //get the id of the row
$.post("url_to_servlet_responsible_to_exclude_item", {
tId: id,
someOthetData: "anyData"
}).done(function(){
//if everything went ok,
//delete the div
$("div#" + id).remove();
});
})

First, I think you should not use the function on("click" in a loop.
You should use class delete for each button that you want to delete.
<button type="button" class="btn btn-default delete" data-id="<%=applicantDAO.viewApplicant().get(i).getApplicantID()%>" aria-label="Left Align">
<span class="glyphicon glyphicon-remove" aria-hidden="true"></span>
</button>
Outside of the loop, you call function on click
$(".delete").on("click", function () {
var id = $(this).attr("data-id"); //get the id of the row
$.post("url_to_servlet_responsible_to_exclude_item", {
tId: id,
someOtherData: "anyData"
}).done(function () {
//if everything went ok,
//delete the div
$("div#" + id).remove();
});
})