An
array is a data structure of the collection of items of the similar type stored in contiguous locations. For performing operations on arrays, the need arises to iterate through it. A
for loop is used to iterate over data structures in programming languages. It can be used here in the following ways:
Example 1:
Output:
The elements of the array are:
1
2
3
4
5
Explanation: The variable i is initialized as 0 and is defined to increase at every iteration until it reaches the value of the length of the array. Then the print command is given to print the elements at each index of the array one by one.
Example 2: The for loopcan use another keyword
return to perform iterations.
Output:
The elements of the array are:
At index 0 value is Ronaldo
At index 1 value is Messi
At index 2 value is Kaka
At index 3 value is James
At index 4 value is Casillas
Explanation: Keyword
range sets the scope of iteration upto the length of arr. The variables index and element store then indexes and values of the array respectively.
Example 3: When we don’t need the index, we can ignore it with the blank identifier _.
Output:
The elements of the array are:
1
2
3
4
5
