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Update day_4.py #891

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19 changes: 11 additions & 8 deletions 04_Day_Strings/day_4.py
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Original file line number Diff line number Diff line change
Expand Up @@ -112,11 +112,19 @@
print(challenge.expandtabs()) # 'thirty days of python'
print(challenge.expandtabs(10)) # 'thirty days of python'

# find(): Returns the index of first occurrence of substring
# find(): Returns the index of the first occurrence of a substring.
# Returns -1 if the substring is not found.

# index(): Returns the index of the first occurrence of a substring.
# Raises a ValueError if the substring is not found.

challenge = 'thirty days of python'
print(challenge.find('y')) # 5
print(challenge.find('th')) # 0

print(challenge.find('y')) # 5
print(challenge.find('th')) # 0

print(challenge.index('y')) # 5
print(challenge.index('th')) # 0

# format() formats string into nicer output
first_name = 'Asabeneh'
Expand All @@ -133,11 +141,6 @@
result = 'The area of circle with {} is {}'.format(str(radius), str(area))
print(result) # The area of circle with 10 is 314.0

# index(): Returns the index of substring
challenge = 'thirty days of python'
print(challenge.find('y')) # 5
print(challenge.find('th')) # 0

# isalnum(): Checks alphanumeric character

challenge = 'ThirtyDaysPython'
Expand Down