For loop in Julia

For loops are used to iterate over a set of values and perform a set of operations that are given in the body of the loop. For loops are used for sequential traversal. In Julia, there is no C style for loop, i.e., for (i = 0; i < n; i++). There is a "for in" loop which is similar to for each loop in other languages. Let us learn how to use for in loop for sequential traversals.  

Syntax:

for iterator in range
    statements(s)
end

Here, ‘for‘ is the keyword stating for loop, ‘in‘ keyword is used to define a range in which to iterate, ‘end‘ keyword is used to denote the end of for loop.

Example:

# Julia program to illustrate
# the use of For loop

print("List Iteration\n")
l = ["geeks", "for", "geeks"]
for i in l
    println(i)
end

# Iterating over a tuple (immutable)
print("\nTuple Iteration\n")
t = ("geeks", "for", "geeks")
for i in t
    println(i)
end

# Iterating over a String
print("\nString Iteration\n")
s = "Geeks"
for i in s
    println(i)
end

Output:


Nested for-loop: Julia programming language allows to use one loop inside another loop. The following section shows an example to illustrate the concept.
Syntax:

for iterator in range
    for iterator in range 
        statements(s) 
        statements(s)
    end
end
 

Example:

# Julia program to illustrate
# the use of Nested For-Loops

# Outer For-loop
for i in 1:5

    # Inner For-loop
    for j in 1:i

        # Print statement
        print(i, " ")
    end
    println()
end

Output: