Delete child nodes

Question

On my Greenhouse jobboard, there are some links that allow applicants to upload their CV from Dropbox. I need to remove the Dropbox link. I can identify the child nodes with document.getElementsByClassName("link-container") but can anyone help delete the one where data-source="dropbox"?

<div class="link-container">
    <a data-source="attach" href="#">Attach</a>

      <a data-source="dropbox" href="#">Dropbox</a>
      <a data-source="google-drive" href="#">Google Drive</a>

      <a data-source="paste" href="#">Paste</a>
</div>

Answer 1

I'd suggest – using ES6 Array.from() and arrow functions – the following:

// assuming there might be more than one element to be removed from
// the document, here we use document.querySelectorAll() to retrieve
// all <a> elements with a 'data-source' attribute equal to 'dropbox':
var targets = document.querySelectorAll('a[data-source=dropbox]');

// we convert the NodeList from document.querySelectorAll() into an
// an Array in order to use Array.prototype.forEach() to iterate
// over the elements:
Array.from(targets).forEach(

  // now we use an Arrow function expression to access the
  // current array-element of the array over which we're 
  // iterating (the 'dropboxLink' variable), and then
  // perform the expression following the fat arrow ('=>')
  // for each element of the array; finding the parentNode
  // and removing that child from the parentNode:
  dropboxLink => dropboxLink.parentNode.removeChild(dropboxLink));

<div class="link-container">
  <a data-source="attach" href="#">Attach</a>

  <a data-source="dropbox" href="#">Dropbox</a>
  <a data-source="google-drive" href="#">Google Drive</a>

  <a data-source="paste" href="#">Paste</a>
</div>

Without ES6 it's a little more verbose:

var targets = document.querySelectorAll('a[data-source=dropbox]');


// using function.prototype.call() to allow us to use
// Array.prototype.slice() on the array-like NodeList,
// converting it into an Array:
Array.prototype.slice.call(targets)

  // using Array.prototype.forEach:
  .forEach(function(dropboxLink) {
    // 'dropboxLink' refers to the current Array element
    // of the Array over which we're iterating.

    // and, again, we remove the current Array-element
    // from its parentNode:
    dropboxLink.parentNode.removeChild(dropboxLink);
});

<div class="link-container">
  <a data-source="attach" href="#">Attach</a>

  <a data-source="dropbox" href="#">Dropbox</a>
  <a data-source="google-drive" href="#">Google Drive</a>

  <a data-source="paste" href="#">Paste</a>
</div>

References:

• Array.from().
• Array.prototype.forEach().
• Array.prototype.slice().
• Arrow Functions.
• document.querySelectorAll().
• Function.prototype.call().
• Node.parentNode.
• Node.removeChild().