F# – Nested Loops

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F# - Nested Loops

F# Nested Loops programming language allows using one loop inside another loop.

Syntax of F# Nested Loops

The syntax for a nested for loop statement could be as follows โˆ’

for var1 = start-expr1 to end-expr1 do
   for var2 = start-expr2 to end-expr2 do
      ... // loop body

The syntax for a nested while loop statement could be as follows โˆ’

while test-expression1 do while test-expression2 do body-expression

Example

let main() =
   for i = 1 to 5 do
      printf "\n"
      for j = 1 to 3 do
         printf "*"
main()

When you compile and execute the program, it yields the following output โˆ’

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