Helper functions

helper_functions.py

# Numbers between
def numbers_between(numbers, min_range, max_range):
	# Create empty list to contain our results
	result = []

	# Run through each number
	for number in numbers:

		# If number is bigger or equal to min_range and bigger or equal to max_range
		if number >= min_range and number <= max_range:

			# Then append it to our result list
			result.append(number)

	# Return the numbers that fit our if sentence
	return result

# List of test numbers
test_numbers = [-3, -2, 4, 8, 90, 100, 183, 200, 212, 300];

# Find numbers between 3 & 100
between_3_and_100 = numbers_between(test_numbers, 3, 100)

# Print the result
print(between_3_and_100) # [4, 8, 90, 100]




# Numbers containing
def numbers_containing_number(numbers, number_to_contain):
	# Create empty list to contain our results
	result = []

	# Run through each number
	for number in numbers:

		#Convert both numbers to strings (because you cant test like this on integers)
		if str(number_to_contain) in str(number):

			# Then append it to our result list
			result.append(number)

	# Return the numbers that contains the number_to_contain
	return result

# List of test numbers
test_numbers = [-3, -2, 4, 8, 90, 100, 183, 200, 212, 300];

# Find numbers containing the number 2
containing_2 = numbers_containing_number(test_numbers, 2)

# Print the result
print(containing_2) # [-2, 200, 212]




# Sort string lengths

# List of test strings
array_of_strings_1 = ['hus', 'have', 'gade', 'kaffe', 'eksamen', 'hoppe']
array_of_strings_2 = ['bb', 'eeeee', 'ccc', 'a', 'dddd']

# Use built in sort method to sort by string length
array_of_strings_1.sort(key=len)

# Use built in sort method to sort by string length in reverse order
array_of_strings_2.sort(key=len, reverse=True)

# Print results from the sorting
print(array_of_strings_1) # ['hus', 'have', 'gade', 'kaffe', 'hoppe', 'eksamen']
print(array_of_strings_2) # ['eeeee', 'dddd', 'ccc', 'bb', 'a']





# Find each string containing a part string 
# Example 1 
# if 'e' in 'test'
# which is true because test contains the string 'e'
#
# Example 2
# if 'est' in 'test'
# which is also true because test contains the string 'est'
def strings_containing_string(strings, string_to_contain):
	# Create empty list to contain our results
	result = []

	# Run through each string
	for string in strings:

		# Find out if string_to_contain are in the string
		if string_to_contain in string:

			# If it is append it to our results
			result.append(string)

	return result

# List of test strings
test_strings = ['hus', 'have', 'gade', 'kaffe', 'eksamen', 'hoppe']

# Find the strings containing a
strings_containing_a = strings_containing_string(test_strings, 'a')

# Find the strings containing am
strings_containing_am = strings_containing_string(test_strings, 'am')

# Print the result
print(strings_containing_a) # ['have', 'gade', 'kaffe', 'eksamen']
print(strings_containing_am) # ['eksamen']