Ruby Basic Exercises: Check a given string contains 'i' characters

Ruby Basic: Exercise-39 with Solution

Write a Ruby program to check a given string contains 'i' characters.

Ruby Code:

def test_str(str)
    count = 0
    for  i in  0..str.length do
    	if(str.slice(i) == 'i')
       		count = count + 1
		end
	  end
	return (count >= 1 && count <= 3);
end

print test_str('Python'),"\n"
print test_str('Diligent1'),"\n"
print test_str('Industrious'),"\n"
print test_str('Impartiality')

Output:

false
true
true
true

Flowchart:

Ruby Code Editor:

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Previous: Write a Ruby program to check two positive integer values and return the larger value that is in the range 20..30 inclusive, or return 0 if no number is in that range.
Next: Write a Ruby program to create a new string taking every other character starting with the first of a given string.

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