Develop Reference

How to focus next textarea on button click

I'm trying to do something like a social network, but I'm having problems with jquery, I want, by clicking the comment button, the user is taken to the comment field, but I'm not able to use $(this).
When the user click here
The code:
<button type="button" class="btn btn-default abreComentarios" >
<span class="fa fa-comments-o"></span>
</button>
The field:
The code:
<div class="comentar">
<textarea class="txtComentario form-control caixaComentario" placeholder="Seu comentário" onkeypress="comentarEnter()"></textarea>
</div>
My jquery:
$('body').on('click', '.abreComentarios', function() {
//console.log('entrou');
$(this).next('.caixaComentario').focus();
});
Remember, I'm using a foreach, so I have to use $(this)

Your next() isn't .caixaComentario but .comentar,
So use the next() but then you'll have to use find() (or children()) to focus the textarea
$('.abreComentarios').on('click', function() {
//console.log('entrou');
$(this).next('.comentar').find('.caixaComentario').focus();
})
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<button type="button" class="btn btn-default abreComentarios">click</button>
<div class="comentar">
<textarea class="txtComentario form-control caixaComentario" placeholder="Seu comentário"></textarea>
</div>

Solved, i just did it:
1- Added a data-id with the id of the post in the button
<button type="button" class="btn btn-default abreComentarios" data-id="'.$post->id.'"><span class="fa fa-comments-o"></span></button>
2- Added the same id in the end of the name of class "caixaComentario"
<div class="comentar">
<textarea class="form-control caixaComentario'.$post->id.'" placeholder="Seu comentário" onkeypress="comentarEnter()"></textarea>
</div>
3- Call without $(this) on jQuery
$('body').on('click', '.abreComentarios', function() {
var id = $(this).data("id");
$('.caixaComentario'+id).focus();
});
and Worked :D

$(this) will be your <button>, but calling .next(".caixaComentario") will look for a sibling element to the button. If your <button> and <div class="comentar"> are siblings, the .next(".caixaComentario") will not match any elements as they aren't siblings. The would be a niece/nephew.
Try changing .next(".caixaComentario") to .next("div .caixaComentario")

passing as parameter the value of a component html

Maybe is my question trivial, but I could not found a answer. Maybe I have been to much hours in front of the monitor :)
I have this situation:
<div class="col-xs-3" style='margin-left: -50px;'>
<a class="btn btn-primary" href="?c=Student&a=list" id="protokol"> List Studens</a>
</div>
This represent a button and with the click event, using MVC, the controller Student is called and the function list executed. But I need to send a parameter to this function that is the value of a HTML component.
<input type='text' id='parm' value=''>
How I can do this using the same structure? I tryed this, but is not correct
<div class="col-xs-3" style='margin-left: -50px;'>
<a class="btn btn-primary" href="?c=Student&a=list&v=<script>$('param').val();</script>" id="protokol"> List Studens</a>
</div>

If you're using jQuery you can attach a click handler to that element which appends the current value of the input. Try this:
$(function() {
$('#protokol').click(function(e) {
e.preventDefault(); // prevent the browser going to the default URL
var url = $(this).attr('href') + '&v=' + $('#param').val();
window.location.assign(url);
});
});

try this instead
<div class="col-xs-3" style='margin-left: -50px;'>
<a id="targetLink" class="btn btn-primary" href="?c=Student&a=list&v=<script></script>" id="protokol"> List Studens</a>
</div>
//document ready
$(function(){
var parameter = $('param').val();
$('#targetLink').attr('href', '?c=Student&a=list&v=' + parameter);
});

How to change html inside a span

I want to change the content of a span in my form
HTML:
<form action="javascript:submit()" id="form" class="panel_frame">
<label>Origin:</label>
<div class="input-group" id="input-group">
<input type="text" id="origin" name="origin" class="form-control">
<span class="input-group-btn">
<button id="btn-default" class="btn btn-default" type="button">
<span class="glyphicon glyphicon-pushpin" aria-hidden="true"></span>
</button>
</span>
</div>
What I want change is che content of <span class="input-group-btn"> with
<button id="btn-default" class="btn btn-default" type="button">
<span class="glyphicon glyphicon-remove" aria-hidden="true"></span>
</button>
So what change is: the icon pushpin to remove and the action useCurrentPosition to clearPosition.
I' using jquery and despite I've read other answer about similar question on Stack like: How can I change the text inside my <span> with jQuery? and how to set a value for a span using JQuery I haven't solved the issue.
I tried:
$("#input-group span").html('
<button id="btn-default" class="btn btn-default" type="button" onclick="br_bus.useCurrentPosition()">
<span class="glyphicon glyphicon-pushpin" aria-hidden="true"></span>
</button>
');
,giving an id to the span and also modify the full div, but none solved my problem.
What am I missing?

Here's a way to overcome the problem of changing the onclick attribute, which is bad practice, without storing a Global var, and using jQuery delegation (learn to use it, it's really good):
$(document).on('click','.btn', positionChange); // Give that button an id on his own and replace '.btn' with '#newId'
// Not using an anonymous function makes it easire to Debug
function positionChange(){
var $btn = $(this), // Caching jQuery elements is good practice
$span = $btn.find('span'), // Just caching
pushpinApplied = $span.hasClass('glyphicon-pushpin'); // Check which icon is applied
( pushpinApplied ) ? useCurrentPosition() : clearPosition();
$span.toggleClass( 'glyphicon-pushpin glyphicon-remove' );
}

Rather than changing the function called in the onclick attribute I suggest having a flag in one function to define the logic it should follow.
For example:
function positionChange(this){
var $this = $(this);
if(!$this.data("currentpositionused")){
//useCurrentPosition() code here
$this.data("currentpositionused", true);
}
else {
//clearPosition() code here
$this.data("currentpositionused", false);
}
Then change your HTML to:
<button class="btn btn-default" type="button" onclick="positionChange(this)">

If you want to change only the onclick attribute of the button inside the particular span you can use the following in your script.,
$(document).ready(function(){
$("span.input-group-btn button").attr("onclick","clearPosition()");
});
EDIT
$(document).ready(function(){
$("span.input-group-btn button").attr("onclick","clearPosition()");
$("span.input-group-btn button span").attr("class","Your_class");
});
And also learn about how to change/add/remove attribute values....

Try this:
$("span.input-group-btn").html('<button class="btn btn-default" type="button" onclick="clearPosition()">
<span class="glyphicon glyphicon-pushpin" aria-hidden="true"></span>
</button>');

Is it like This ?
how to change onclick event with jquery?
$("#id").attr("onclick","new_function_name()");
jquery change class name
$("#td_id").attr('class', 'newClass');
If you want to add a class, use .addclass() instead, like this:
$("#td_id").addClass('newClass');

Javascript toggle hide and show buttons in a loop Laravel 5

I am writing a Laravel 5 project with a comment section code below
#foreach($Comment as $Comment)
<div id="comment-{!! $Comment->comments_id !!}" class="comment-wrapper">
<div class="btn btn-lg btn-info btn-xs" class="show">Show</div>
<div class="btn btn-lg btn-success btn-xs" class="hide">Hide</div>
<div class="btn btn-lg btn-warning btn-xs" class="toggle">Toggle</div>
<div class="watch" class="jumbotron alert-info">
<ul class="list-group">
<li class="list-group-item list-group-item-success">{!! $Comment->author !!}</li>
<li class="list-group-item"> {!! $Comment->text !!}</li>
</ul>
#if ($Comment->author == Auth::user()->name)
<p>Delete</p>
#endif
<h6><small>CREATED ON: {!! $Comment->created_at !!}</small></h6>
</div>
</div>
#endforeach
and I have a javascript file which looks like this
$(document).ready(function () {
$('.show').click(function () {
$(this).closest('.comment-parent').find('.watch').show('slow');
});
$('.hide').click(function () {
$(this).closest('.comment-parent').find('.watch').hide('slow');
});
$('.toggle').click(function () {
$(this).closest('.comment-parent').find('.watch').toggle('slow');
});
});
The trouble is the toggle/hide javascript function only works on one set of buttons and hides all of the comments. I want to have the set of buttons that work for each comment individually. I've tried to increment the watch class and buttons div id by adding 1 and incrementing it for each comment but can't get it to work. Any help would be appreciated thanks.

You may try something like this:
$('#show').click(function () {
$(this).next('.watch').show('slow');
});
Try same approach for other methods, so only the next first div with class of watch will be acted and also, you could have wrapped each set in a single parent container using a unique id attribute in addition to a class, for better grouping. For example:
#foreach($Comment as $Comment)
<div id="comment-{{$comment->id}}" class="comment-wrapper">
<div class="btn btn-lg btn-info btn-xs show">Show</div>
<!-- More... -->
<div class="watch" class="jumbotron alert-info">
<!-- More... -->
</div>
</div>
#endforeach
This way, you could have done the jQuery slecting more specifically, for example:
$('#show').click(function () {
$(this).closest('.comment-parent').find('.watch').show('slow');
});
Update (Thanks to haakym for pointing me that): Also, an id must be unique so instead of using id='show' use it as a class and then use:
$('.show').click(function () {
$(this).closest('.comment-parent').find('.watch').show('slow');
});

Jquery click function, using this but return me window object

all. I have html layout like this:
<div class="row" id="1">
/*Other code has nothing to do with <div class="form-group col-lg-1">*/
<div class="form-group col-lg-1">
<input type="button" class="btn btn-default" onclick="updateLine()" value="Update">
</div>
</div>
I want to obtain the div's ID, in this case, which is 1.
This is what I did.
function updateLine() {
alert(this.parent().parent().attr("id"));
}
However, it failed, then I check
alert(this);
it returns to me the window object.
So the question is , how could I get the id's value, which is 1.
Thanks.

You need to pass this to the function as follows
<input type="button" class="btn btn-default" onclick="updateLine(this)" value="Update">
function updateLine(obj) {
alert(obj);
$(obj).closest('.row').attr('id'); // will return the id, note that numeric values like 1 are invalid
}

You do not need to pass this to the function. In an event handler this is the element clicked. However, to use .parent() etc on it you need the jQuery object for that element which is $(this)
Also, I would strongly recomment using .closest instead of .parent().parent(). Something like
$(this).closest('div.row').attr('id')
Way less likely to break when you make small layout changes...
The comments about using jQuery events instead of inline javascript are also good advice.
Example:
<div class="row" id="1">
/*Other code has nothing to do with <div class="form-group col-lg-1">*/
<div class="form-group col-lg-1">
<input type="button" class="btn btn-default" value="Update">
</div>
</div>
<script type="text/javascript">
$(function(){
function updateLine(event){
alert( $(this).closest('.row').attr('id') );
}
// If you have other buttons add a class like 'btn-update' and use that instead
$('body').on('click', '.btn-default', updateLine);
});
</script>

If you want to do inline event handlers, you need to pass this:
onclick="updateLine(this)"
then in js:
function updateLine(obj) {
alert($(obj).closest('.row').attr("id"));
}
However, I'd recommend removing the inline handler if possible and using jQuery to do the binding:
$('button').click(function() {
alert($(this).closest('.row').attr("id"));
});

What you are trying do is very bad practice. It will never work.
Firs, you should not use inline javascript.
Second, you should use real jQuery code.
Below you can see a working example.
<div class="row" id="1">
<div class="form-group col-lg-1">
<input type="button" class="btn btn-default" value="Update" id="someID" />
</div>
</div>
And your jQuery code should be like:
$(function () {
$('#someID').click(function () {
alert($(this).parents('div:eq(1)').prop('id'));
});
});
Here is a working example: http://jsfiddle.net/avramcosmin/Z9snq/

A bit late but what worked for me:
$(document).on('click', '.id', function(event) {
const elem = $(this);
})