for-loop.md

For Loop

my_list = [1, 2, 3, 4, 5]
for item in my_list:
    print(item)

my_string = "Hello"
for char in my_string:
    print(char)

Iterating Over Dictionaries

• Keys:

  my_dict = {'a': 1, 'b': 2, 'c': 3}
  for key in my_dict:
      print(key)

• Values:

  for value in my_dict.values():
      print(value)

• Key-Value Pairs:

  for key, value in my_dict.items():
      print(key, value)

Using range()

for i in range(2, 10, 2):
    print(i)  # 2, 4, 6, 8

For Loop Techniques

• Using enumerate(): To get both index and value.

  for index, value in enumerate(['a', 'b', 'c']):
      print(index, value)

• Using zip(): To iterate over multiple sequences in parallel.

  names = ["Alice", "Bob", "Charlie"]
  ages = [25, 30, 35]
  for name, age in zip(names, ages):
      print(f"{name} is {age} years old.")

• Using break and continue: To control the flow of the loop.

  for i in range(10):
      if i == 5:
          break  # Exit the loop
      if i % 2 == 0:
          continue  # Skip the rest of the code in this iteration
      print(i)

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