Delete User Custom Actions Using JavaScript

The following example show you
how to  delete a user custom action from  the drop-down menu on list items.

  <a onclick="deleteUserCustomAction(); " href="#">Delete Custom Action</a>
 
 
  <script>


var siteUrl = '/sites/site name';

function deleteUserCustomAction() {

    this.clientContext = new SP.ClientContext(siteUrl);
    var oWebsite = clientContext.get_web();
    this.oList = oWebsite.get_lists().getByTitle('list name');
    this.collUserCustomAction = oList.get_userCustomActions();
      
    clientContext.load(oList,'UserCustomActions','Title');

    clientContext.executeQueryAsync(Function.createDelegate(this, this.deleteCustomAction), Function.createDelegate(this, this.onQueryFailed));
}

function deleteCustomAction() {

    var customActionEnumerator = collUserCustomAction.getEnumerator();

    while (customActionEnumerator.moveNext())
    {
        var oUserCustomAction = customActionEnumerator.get_current();
          
        if (oUserCustomAction.get_title() == 'derege Custom Action')
        {
        
           oUserCustomAction.deleteObject();        
           clientContext.load(oUserCustomAction);

           clientContext.executeQueryAsync(Function.createDelegate(this, this.onQuerySucceeded), Function.createDelegate(this, this.onQueryFailed));
        }
    }
}

function onQuerySucceeded() {

    alert('Custom action removed');
}

function onQueryFailed(sender, args) {

        alert('Request failed. ' + args.get_message() + '\n' + args.get_stackTrace());
}
</script>

related content
add user custom actions
modify user custom actions

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