What does this declaration mean?

_YearlyApyStats({ vaultId }: { vaultId: VaultEntity['id'] }) {

CodePudding user response：

It is a function definition with one parameter.

The parameter is of type { vaultId: VaultEntity['id'] }, i.e. an object with one property called vaultId and the type of this property is VaultEntity['id'], which just means: use the type of the property id from the VaultEntity type.

for example, if we have

interface VaultEntity {
  id: string;
}
const foo: VaultEntity['id];

then the type of foo is string

The part { vaultId } just uses the spread feature to get the vaultId property from the passed parameter. i.e. it is the same as:

function _YearlyApyStats(param: { vaultId: VaultEntity['id'] }) {
  const vaultId = param.vaultId;
}