how update a item in linq list code example

Example 1: linq to update a list

customers.Where(c => c.IsValid).Select(c => { c.CreditLimit = 1000; return c; }).ToList();

Example 2: linq to update a list

var newCustomers = customers.Where(c => c.IsValid).Select(c => { c.CreditLimit = 1000; return c; });