Question

Im using the following javascript. it writes fine until it gets to a result which doesn’t have a value. in console log it shows this

Uncaught TypeError: Cannot read property ‘text’ of null

but my script below doesn’t seem to work

            var checkCaption = photo.caption.text;
            if (checkCaption == null) {
                caption = 'meh';
            } else {
                caption = photo.caption.text;
            }

Answer 1

In your example, photo.caption is null, so your code breaks on the photo.caption.text call, before the check is done.

var caption;

if(photo.caption != null) { // Covers 'undefined' as well
  caption = photo.caption.text;
} else {
  caption = "meh";
}