Tinymce 4.2.0 got Cannot read property 'setContent' of null

Question

I got Cannot read property \'setContent\' of null, when i want to using setContent function. Intended for set value in text editor generated by Tinymce library. Is am wrong

Answer 1

You have to wait until the editor is initialized:

tinymce.init({
  selector:'textarea',
  init_instance_callback : function(editor) {
    editor.setContent('custom');
  }
});

Answer 2

There is other turn around for your solution:

Call setContent within $( window ).load(function(){}) but you have initialize jquery first.

Modified code will look like below:

<textarea name="content"></textarea>      
<script src="http://code.jquery.com/jquery-1.9.1.min.js"></script>
<script src="assets/tinymce/tinymce.min.js"></script>
<script>
  tinymce.init({
    selector:'textarea'
  }); 
$( window ).load(function(){         
  tinymce.activeEditor.setContent('custom');
});
</script>  

Answer 3

Real late to the party, but tinyMCE.init also has setup configuration option which allows to add any event handlers to the specific editor being initialised:

tinymce.init({
        setup: editor => {
            editor.on('init', () => {
                editor.setContent('custom');
            });
        }
    });