Tips for dynamically updating the id value while iterating through a class

Question

Tips for dynamically updating the id value while iterating through a class

Here's the HTML snippet I am working with:

<div class="info">
    <div class="form-group">
        <label class="control-label col-sm-2">Title</label>
            <div class="col-xs-10 col-sm-8">
                <input id="titleInfo" class="form-control" type="text" placeholder="Title">
            </div>
        <div class="col-xs-1 col-sm-1">
            <button class="btn btn-default remove_field"><i class="fa fa-remove"></i></button>
        </div>
    </div>
    <div class="form-group">
        <label class="control-label col-sm-2">Text</label>
        <div class="col-xs-10 col-sm-8">
            <textarea id="textInfo" class="form-control" type="text" placeholder="..."></textarea>
        </div>
    </div>
</div>

In my JSP file, there are several instances of the above code:

<div class="info">
    ...
</div>
<div class="info">
    ...
</div>
<div class="info">
    ...
</div>

What I want to do is change the IDs (titleInfo and textInfo) of each div with the class info in ascending order.

<div class="info">
    ..<input id="titleInfo1"..
    ..<textarea id="textInfo1"..
</div>
<div class="info">
    ..<input id="titleInfo2"..
    ..<textarea id="textInfo2"..
</div>
<div class="info">
    ..<input id="titleInfo3"..
    ..<textarea id="textInfo3"..
</div>

This needs to be done for all instances.

I plan to iterate through by the class info:

var x = 1;
$(".info").each(function() {
    //Now, I need to figure out how to update the IDs
    x++;       
});

javascript jquery html css

Answer 1

Answer №1

To implement the necessary changes, please revise the code as shown below:

var x = 1;
$(".info").each(function() {
    var elems = $(this).find(".form-control"); // locate all input elements with the form-control class
    elems.each(function() { // traverse through the elements
         $(this).attr("id", $(this).attr("id") + x); // update the id attribute
    }); 
    x++;       
});

Modification

var x = 1;
    $(".info").each(function() {
        var elems = $(this).find(".form-control"); // retrieve all input elements with the form-control class
        $(elems[0]).attr("id", "titleInfo" + x);
        $(elems[1]).attr("id", "textInfo" + x);
        x++;       
    });

Answer 2

To implement the necessary changes, please revise the code as shown below:

var x = 1;
$(".info").each(function() {
    var elems = $(this).find(".form-control"); // locate all input elements with the form-control class
    elems.each(function() { // traverse through the elements
         $(this).attr("id", $(this).attr("id") + x); // update the id attribute
    }); 
    x++;       
});

Modification

var x = 1;
    $(".info").each(function() {
        var elems = $(this).find(".form-control"); // retrieve all input elements with the form-control class
        $(elems[0]).attr("id", "titleInfo" + x);
        $(elems[1]).attr("id", "textInfo" + x);
        x++;       
    });

Answer 3

Answer №2

It's highly recommended to handle this server-side, specifically within the loop control responsible for generating those blocks. Nevertheless, here is a solution for your reference.

$("#infoBlock").each(function(i) {

    var $title = $(this).find("#titleInfo");
    var $text = $(this).find("#textInfo");
    $title[0].id += (i+1);
    $text[0].id += (i+1);
});

Feel free to check out this demo link as well.

Answer 4

It's highly recommended to handle this server-side, specifically within the loop control responsible for generating those blocks. Nevertheless, here is a solution for your reference.

$("#infoBlock").each(function(i) {

    var $title = $(this).find("#titleInfo");
    var $text = $(this).find("#textInfo");
    $title[0].id += (i+1);
    $text[0].id += (i+1);
});

Feel free to check out this demo link as well.

Answer 5

Answer №3

Check out the following code snippet.

var x = 1;
$(".info").each(function() {
 var ele=$(this).find('.form-control');
  ele.each(function(){
     setIdentifier($(this),x)
   })
    x++;       
});

function setIdentifier(element,x){
  element.attr('id',element.attr('id')+x)
  }

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.2.3/jquery.min.js"></script>
<div class="info">
    <div class="form-group">
        <label class="control-label col-sm-2">Title</label>
            <div class="col-xs-10 col-sm-8">
                <input id="titleInfo" class="form-control" type="text" placeholder="Title">
            </div>
        <div class="col-xs-1 col-sm-1">
            <button class="btn btn-default remove_field"><i class="fa fa-remove"></i></button>
        </div>
    </div>
    <div class="form-group">
        <label class="control-label col-sm-2">Text</label>
        <div class="col-xs-10 col-sm-8">
            <textarea id="textInfo" class="form-control" type="text" placeholder="..."></textarea>
        </div>
    </div>
</div>

This portion of code accomplishes the same result.

Script

var x = 1;
$(".info").each(function() {
 var ele=$(this).find('.form-control');
  ele.each(function(){
      $(this).attr('id',$(this).attr('id')+x)
   })
    x++;       
});

Answer 6

Check out the following code snippet.

var x = 1;
$(".info").each(function() {
 var ele=$(this).find('.form-control');
  ele.each(function(){
     setIdentifier($(this),x)
   })
    x++;       
});

function setIdentifier(element,x){
  element.attr('id',element.attr('id')+x)
  }

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.2.3/jquery.min.js"></script>
<div class="info">
    <div class="form-group">
        <label class="control-label col-sm-2">Title</label>
            <div class="col-xs-10 col-sm-8">
                <input id="titleInfo" class="form-control" type="text" placeholder="Title">
            </div>
        <div class="col-xs-1 col-sm-1">
            <button class="btn btn-default remove_field"><i class="fa fa-remove"></i></button>
        </div>
    </div>
    <div class="form-group">
        <label class="control-label col-sm-2">Text</label>
        <div class="col-xs-10 col-sm-8">
            <textarea id="textInfo" class="form-control" type="text" placeholder="..."></textarea>
        </div>
    </div>
</div>

This portion of code accomplishes the same result.

Script

var x = 1;
$(".info").each(function() {
 var ele=$(this).find('.form-control');
  ele.each(function(){
      $(this).attr('id',$(this).attr('id')+x)
   })
    x++;       
});

Tips for dynamically updating the id value while iterating through a class

Answer №1

Answer №2

Answer №3

Similar questions

Ways to retrieve the CSS class names associated with an element

Encountering module error 'internal/fs' after updating to Node 7

How can we ensure the discord client object is easily accessible within event files?

Using Ajax in a separate JavaScript file

What is the best way to place a div within another div?

Tips on displaying hyperlinks within a text area in an Angular application

Executing a function following the removal of an element

"Bootstrap Carousel veers off from center alignment and aligns to the left instead

Guide on updating a specific item in a JSON array using npm request

Steps for ensuring a promise is fulfilled in Node.js and Firebase

retrieve the path of any module within an npm monorepo

Error in Access-Control-Allow-Origin when using Node.js and JSONP

What could be causing the fluctuation in ui-grid height as I scroll horizontally?

Switching over from an external style sheet to inline elements can be tricky, especially when it comes to integrating "dropdown" styles properly

Revamp the Bootstrap Carousel Control by replacing the default navigation arrows with stylish arrows featuring circle backgrounds

Is the node certificate store limited to reading only from a predefined list of certificates?

Include an HTML attribute within a given string

What steps do I need to take to develop a syntax similar to Vue.js using only plain JavaScript?

Is there a way to obtain asynchronous stack traces using Node.js and TypeScript?

Uploading a file to an MVC controller using AJAX is unsuccessful