solved if metadata

[babbleon]

Hello,

If i want to check if a mesh has some metadata, I have to check first if it has metadata, then thing specific metadata... eg:

if (evt.pickInfo.pickedMesh.metadata) {
	if (evt.pickInfo.pickedMesh.metadata.pointType === 'source') {
		console.log('mesh as metadata: source');
	}
}

Can this be condensed into just one if line?

Thank you,

[Arte]

@babbleon You can implement like:

let hasOwnNestedProperty = function(obj, path) {
    for (var i = 0, path = path.split('.'), len = path.length; i < len; i++)
    {
        obj = obj[path[i]];
        if (!obj) return false;
    }
    return true;
};

if (
    hasOwnNestedProperty(evt.pickInfo.pickedMesh,'metadata.pointType') &&
    evt.pickInfo.pickedMesh.metadata.pointType === 'source'
) {
        console.log('mesh as metadata: source');
    }
}

 

[babbleon]

Thank you @Arte