What is Let in linq?

It allows defining a variable and assigning it a value calculated from the data values

It allows defining a variable and assigning it a value calculated from the data values

It allows defining a variable and assigning it a value calculated from the data values

LET keyword allows you to store result of a query which can be used in subsequent query. example :- var em = from e in emp group e by new { e.Salary, e.Id } into gEmp let avgsal = (gEmp.Sum(t => t.Salary) / gEmp.Count()) where gEmp.Key.Salary == avgsal select new { gEmp.Key.Salary, gEmp.Key.Id };

Let is a keyword used to introduce a variable in linq query