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JQuery - Add class on click verifying ID

I'm trying to add a class to a specific element that contains a parent container with a unique ID.
I have several buttons contained in a div, and all of them are using the same classes. For some reason, I can't use only $(this), so I created a loop that adds a unique ID to the containers.
HTML
<div class='section'>
<div class='btn-container' id='btn-1'>
<button class='btn'></button>
</div>
<div class='btn-container' id='btn-2'>
<button class='btn'></button>
</div>
<div class='btn-container' id='btn-3'>
<button class='btn'></button>
</div>
</div>
JQuery
$("button").click(function (e) {
e.preventDefault();
var target = $(e.target).parents(".button-container").attr("id");
console.log(target);
$(target).find(".btn").addClass("active");
});
I'm targeting the ID and it works, the console.log gives me back the correct info. However, for some reason, I can't add the class.
Thank you in advance for any help! (:
Edited:
I'm trying to add the class active to the button that is contained in the ID.
Example:
$("#btn-1 .btn").addClass("active"); but with the ID dynamically populate based on the info from the click.

Keep things simple, this should work
$(document).ready(function() {
$("button").click(function (e) {
e.preventDefault();
$(e.target).addClass("active")
});
});
.active{
border: 1px red solid;
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<div class='section'>
<div class='btn-container' id='btn-1'>
<button class='btn'>Test</button>
</div>
<div class='btn-container' id='btn-2'>
<button class='btn'>Test</button>
</div>
<div class='btn-container' id='btn-3'>
<button class='btn'>Test</button>
</div>
</div>

i would like to read by clicking the text id

I am new to jQuery and need help for the following problem.
How can I read the text from div and print in alert at click function?
My html code:
<div>
<div id"test">text1</div>
select
<div id"test">text2</div>
select
<div id"test">text3</div>
select
</div>

$('a').on('click', function() {
var div = $(this).prev();
alert(div.text());
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<div>
<div id="test1">text1</div> select
<div id="test2">text2</div> select
<div id="test3">text3</div> select
</div>

two division put the details in inner div using jquery

i have 2 divisoin
<div id="details">
<div id="feature">
</div>
</div>
I need to put the content using $("#details").html(content); (it is working correctly) like that way i need to put the content inside feature div i am using following way:
$("#details #feature").html(content);
but it is not working..how to solve?

When you use $("#details").html(content); you override the content of the div. So you're inner div with the id feature gets removed. Maybe you use $("#details").prepend(content); or you add another div for the main content and replace that content.
Look here is an example:
https://jsfiddle.net/morrisjdev/s9u7rfcu/

ID is a unique attribute so you can directly use id like below.
$(function() {
var content = "Some text here";
$('#feature').html(content);
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div id="details">
<div id="feature">
</div>
</div>
OR
$(function() {
var content = "Some text here";
$('#details').find('#feature').html(content);
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div id="details">
<div id="feature">
</div>
</div>

$(document).ready(function(){
var htmldetail ="Hello! I am Here";
var details = $("#details").html(htmldetail);
$("#userfeature").html(details);
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js"></script>
<div id="details">
<div id="userfeature">
</div>
</div>

The second is #feature and not #userfeature. And also add the jQuery Library as well. You can replace test with content variable.
$("#feature").html("test");
<div id="details">
<div id="feature">
</div>
</div>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
And also remember Id is unique and hence no need to mention its parent.
Run the following snippet and you can get the output.

Simple way..Go Through this
HTML
<div id="details">
<div id="feature">
</div>
</div>
JQUERY
$(document).ready(function()
{
var content="contain sample data";
// $("#details").html(content); if you wrote like this,
this will replace all content, so the inner div will be replaced
$("#details").append(content); // outer div
$("#feature").html(content);
});

Or you can use css-like selector method:
$(document).ready(function() {
$('#details > #feature').html('Hello <strong>World!!!</strong>');
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div id="details">
<div id="feature">
</div>
</div>

I have created a plunk for it and it is working.
Try including the action inside
$( document ).ready(function() {
console.log( "ready!" );
var content = 'Hey there';
$("#details #feature").html(content);
});
Plunk :- http://plnkr.co/edit/63GsIoGmprnKs7oe77cF?p=preview

Change class by searching for the closest class

I want to change the class of my closest div after pressing a button. Let me make it more clear by showing some code. I have the following HTML:
<div class="wrapper">
<div class="title">
<div class="aa">-</div>
<div class="ab">-</div>
<div class="ac">-</div>
<div class="navigation">
Test link
</div>
</div>
<div class="content not_active">
<p>
Text
</p>
</div>
</div>
With the following CSS:
.active{
display:block;
}
.not_active{
display:none;
}
Now my goal is to find the closest div that has the class: .not_active and change that class after pressing on the hyperlink with class: navigation.
I tried it with jQuery with the following code:
$(function () {
$('.navigatie a').click(function () {
$(this).parent().parent().find('.not_active').toggleClass('active');
});
});
but with no succes. What I am doing wrong?
JSFIDDLE DEMO

It is because you are using .navigatie class instead of .navigation.
Here the JSFiddle.

jquery show only child

I have a problem : I use classes on a div for simplicity, I would like to show a hidden div after a click, but only on that div, the problem is it shows on all divs, and I can't seem to get it working, here is a jsfiddle with the problem : http://jsfiddle.net/cWNvT/
HTML:
<div class="left">
Edit
<div class="edit">
<p>edit here</p>
</div>
</div>
<div class="left">
Edit
<div class="edit">
<p>edit here</p>
</div>
</div>
<div class="left">
Edit
<div class="edit">
<p>edit here</p>
</div>
</div>
JavaScript:
$(document).ready(function() {
$('.edit').hide();
$('.left a.edit-click').click(function() {
$('.left').children().show();
});
});​
Anyone have a solution for this ?

Try this working fiddle.
$(document).ready(function() {
$('.edit').hide();
$('.left a.edit-click').click(function(){
$(this).parent().children().show();
});
});
All I have done is use $(this).parent() instead of using your $(".left") selector.

Try finding the parent of the clicked element only, and using its children:
http://jsfiddle.net/cWNvT/1/
$(document).ready(function() {
$('.edit').hide();
$('.left a.edit-click').click(function(){
$(this).closest(".left").children().show();
});
});
​
$(".left") selects all elements with class .left in the document. $(this).closest(".left") finds the first parent of the clicked link that has class .left.

Change your code to this:
$('.left a.edit-click').click(function(){
$(this).next('.edit').show();
});
http://jsfiddle.net/cWNvT/3/