Collapse a table if no data in linked dataset (dynamic page)

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1

Hi there. I have a dynamic page with two tables connected to a dataset. One of the tables will not always have content. I want this table to collapse (not show at all) if there is no content to feed through from the dataset.

I’ve tried this code but it does not work:

We want #testtable to be hidden on load if there is no content
Dataset= #dataset2
Element=#testtable
Text field in #dataset2 that is linked to #testtable= testfield

$w.onReady(function () {
//Wait for dataset1 to finish loading
$w(“#dataset2”).onReady(function () {
//get the value
const testfield = $w(‘#testtable’);
//collapse the image box if testfield is empty
if (testfield === ‘’) {
$w(‘#testtable’).collapse();
}
});
});

2 
const testfield = $w('#dataset2').getCurrentItem().testfield;
if (typeof testfield === "undefined") {
$w('#testtable').collapse();
}