GeoJSON not showing

My issue is that i have the GeoJSON as a seperate Javascript file
It works fine

This is my code
`

<script>
    
    var map = L.map('map').setView([52.21, 5.96944], 3);

    L.tileLayer('https://tile.openstreetmap.org/{z}/{x}/{y}.png', {
    maxZoom: 19,
    attribution: '&copy; <a href="http://www.openstreetmap.org/copyright">OpenStreetMap</a>'
    }).addTo(map);

    var ned = L.geoJSON(geoJSONFeature).addTo(map);
</script>`

I tried watching youtube videos about it but it works for them when i do the same it doesnt