F# Records - Default Values

fsharp.records.default_values.fs

// Rather than use [<DefaultValue>], define a default record.
type MyRecord = {
  field1 : int
  field2 : int
}

let defaultRecord1 = { field1 = 0; field2 = 0 }
let defaultRecord2 = { field1 = 1; field2 = 25 }

// Use the with keyword to populate only a few chosen fields
// and leave the rest with default values.
let rr3 = { defaultRecord1 with field2 = 42 }