In resolver I use lodash method 'find', if I code as:
user: (_, { _id }) => find(users, _id ),
I get null as result while should not, it happens that I must destructure again:
user: (_, { _id }) => find(users, { _id }),
Why is this? I thought that destructuring happens once and then the named argument is passed into the function, how to understand it?
The latter is not destructuring but rather just shorthand syntax for object initialization.
This
find(users, { _id })
is equivalent to
find(users, { _id: _id })
it's just more succinct. In both cases, you are creating an object with a property named _id and setting the value of that property to an existing variable, which happens to also be named _id. If the property and variable names match, the shorthand syntax can be used.
