tien commented on PR #2599:
URL: https://github.com/apache/tinkerpop/pull/2599#issuecomment-2118834748
I mainly included the utility function as a demonstration of what a strong
TypeScript definition can enable.
As for the benefit of having an utility function like that, with TypeScript
I have to do a lot of boilerplates just extract basic values from vertices, i.e:
```ts
const vertices = await g.V().hasLabel("person").toList<PersonVertex>();
const people = vertices.map(vertex => {
// eslint-disable-next-line @typescript-eslint/no-non-null-assertion
const age = vertex.properties.age.at(0)!.value;
// eslint-disable-next-line @typescript-eslint/no-non-null-assertion
const name = vertex.properties.name.at(0)!.value;
const addresses = vertex.properties.address.map(x => x.value);
return {
age,
name,
addresses
};
});
```
which with the utility function can be simplified to
```ts
const vertices = await g.V().hasLabel("person").toList<PersonVertex>();
const people = vertices.map(vertex => parseVertex(vertex, { address: "list"
}));
```
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