How can I target this element using the querySelector method?

Question

How can I target this element using the querySelector method?

<div class="parentDiv" >
   <button class="close" 
    data-dismiss="modal" 
    style="..." 
    aria-label="Close" 
    onclick='$(this).closest(".parentDiv").remove()'
    >
         <span class="glyphicon glyphicon-remove-circle small"></span>
    </button>

    <div class="alert alert-danger">{{ errorMsg }}</div>
</div>
...
...

If I want to change the jQuery $(this) to pure JavaScript using querySelector, particularly for selecting the parent element with the "parentDiv" class name and removing it upon clicking on the element:

Note that Element.closest() should be used because there are multiple stacked Div elements with the "parentDiv" class name.

The goal is to target the parent element effectively without relying on the jQuery selector $(this).closest('.parentDiv').remove(). Is it feasible to achieve this without having prior knowledge of the current element's class or ID?

javascript jquery css

Answer 1

Answer №1

To easily remove a button that is always nested in a parentDiv container, you can grab the parent node and use parentNode along with remove method.

document.querySelector("button").addEventListener("click", function() {
   this.parentNode.remove();
});

<div>
<button>remove me</button>
</div>

Alternatively, within an onclick event:

<div>
<button onclick="this.parentNode.remove()">remove me</button>
</div>

Answer 2

To easily remove a button that is always nested in a parentDiv container, you can grab the parent node and use parentNode along with remove method.

document.querySelector("button").addEventListener("click", function() {
   this.parentNode.remove();
});

<div>
<button>remove me</button>
</div>

Alternatively, within an onclick event:

<div>
<button onclick="this.parentNode.remove()">remove me</button>
</div>

Answer 3

Answer №2

Another way to manipulate the DOM is by utilizing the parentNode property of the element. This method does not require the use of a class selector.

Here is an example of how to implement this:

if (element.parentNode) {
  // Remove the element from the DOM
  // Only if it is currently in the tree
  node.parentNode.removeChild(node);
}

Answer 4

Another way to manipulate the DOM is by utilizing the parentNode property of the element. This method does not require the use of a class selector.

Here is an example of how to implement this:

if (element.parentNode) {
  // Remove the element from the DOM
  // Only if it is currently in the tree
  node.parentNode.removeChild(node);
}

Answer 5

Answer №3

One of the main reasons for the creation of jQuery was to simplify tasks like handling multiple buttons within elements that have a specific ancestor with a certain class, such as the parentDiv class.

// JavaScript equivalent to $(this).closest('.parentDiv').remove()

var buttons = document.querySelectorAll('button.close');

for (var i = 0; i < buttons.length; i++) {
  buttons[i].addEventListener('click', function() {
    var parent = this.parentNode;

    while (!parent.classList.contains('parentDiv')) {
      parent = parent.parentNode;
    }

    parent.parentNode.removeChild(parent);
  });
}

Snippet:

var buttons = document.querySelectorAll('button.close');

for (var i = 0; i < buttons.length; i++) {
  buttons[i].addEventListener('click', function() {
    var parent = this.parentNode;

    while (!parent.classList.contains('parentDiv')) {
      parent = parent.parentNode;
    }

    parent.parentNode.removeChild(parent);
  });
}

.parentDiv {
  border: 1px solid black;
}

<div class="parentDiv">
  Parent 1
  <button class="close">
    Delete Parent 1
  </button>
</div>

<div class="parentDiv">
  Parent 2
  <span>
    <button class="close">
      Delete Parent 2
    </button>
  </span>
</div>

Answer 6

One of the main reasons for the creation of jQuery was to simplify tasks like handling multiple buttons within elements that have a specific ancestor with a certain class, such as the parentDiv class.

// JavaScript equivalent to $(this).closest('.parentDiv').remove()

var buttons = document.querySelectorAll('button.close');

for (var i = 0; i < buttons.length; i++) {
  buttons[i].addEventListener('click', function() {
    var parent = this.parentNode;

    while (!parent.classList.contains('parentDiv')) {
      parent = parent.parentNode;
    }

    parent.parentNode.removeChild(parent);
  });
}

Snippet:

var buttons = document.querySelectorAll('button.close');

for (var i = 0; i < buttons.length; i++) {
  buttons[i].addEventListener('click', function() {
    var parent = this.parentNode;

    while (!parent.classList.contains('parentDiv')) {
      parent = parent.parentNode;
    }

    parent.parentNode.removeChild(parent);
  });
}

.parentDiv {
  border: 1px solid black;
}

<div class="parentDiv">
  Parent 1
  <button class="close">
    Delete Parent 1
  </button>
</div>

<div class="parentDiv">
  Parent 2
  <span>
    <button class="close">
      Delete Parent 2
    </button>
  </span>
</div>

Answer 7

Answer №4

In the event that you make changes to your HTML and find that your button is no longer a direct child of the node you wish to remove, there is an alternative solution. You can eliminate the jQuery selector by simply using this instead of $(this).

Element.closest is well-supported in browsers (excluding Internet Explorer), but if you have concerns about browser compatibility, a polyfill is available.

jQuery's main purpose is to provide standardized methods across browsers that may not yet support them, like Element.closest. To achieve full browser support, it seems that there isn't a simple one-liner replacement for using jQuery. However, you can selectively include necessary components, such as the Element.closest polyfill within a script tag in the head section of your HTML document.

<script>
// Optional Element.closest polyfill
if (!Element.prototype.matches)
    Element.prototype.matches = Element.prototype.msMatchesSelector || 
                                Element.prototype.webkitMatchesSelector;

if (!Element.prototype.closest){
    Element.prototype.closest = function(s) {
        var el = this;
        if (!document.documentElement.contains(el)) return null;
        do {
            if (el.matches(s)) return el;
            el = el.parentElement || el.parentNode;
        } while (el !== null && el.nodeType === 1); 
        return null;
    };
}

</script>

<div class="parentDiv" >
   <button class="close" 
    data-dismiss="modal" 
    style="..." 
    aria-label="Close" 
    onclick='this.closest(".parentDiv").remove()'
    >
         <span class="glyphicon glyphicon-remove-circle small">Remove</span>
    </button>

    <div class="alert alert-danger">{{ errorMsg }}</div>
</div>

Answer 8

In the event that you make changes to your HTML and find that your button is no longer a direct child of the node you wish to remove, there is an alternative solution. You can eliminate the jQuery selector by simply using this instead of $(this).

Element.closest is well-supported in browsers (excluding Internet Explorer), but if you have concerns about browser compatibility, a polyfill is available.

jQuery's main purpose is to provide standardized methods across browsers that may not yet support them, like Element.closest. To achieve full browser support, it seems that there isn't a simple one-liner replacement for using jQuery. However, you can selectively include necessary components, such as the Element.closest polyfill within a script tag in the head section of your HTML document.

<script>
// Optional Element.closest polyfill
if (!Element.prototype.matches)
    Element.prototype.matches = Element.prototype.msMatchesSelector || 
                                Element.prototype.webkitMatchesSelector;

if (!Element.prototype.closest){
    Element.prototype.closest = function(s) {
        var el = this;
        if (!document.documentElement.contains(el)) return null;
        do {
            if (el.matches(s)) return el;
            el = el.parentElement || el.parentNode;
        } while (el !== null && el.nodeType === 1); 
        return null;
    };
}

</script>

<div class="parentDiv" >
   <button class="close" 
    data-dismiss="modal" 
    style="..." 
    aria-label="Close" 
    onclick='this.closest(".parentDiv").remove()'
    >
         <span class="glyphicon glyphicon-remove-circle small">Remove</span>
    </button>

    <div class="alert alert-danger">{{ errorMsg }}</div>
</div>

How can I target this element using the querySelector method?

Answer №1

Answer №2

Answer №3

Answer №4

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