Definition:
A generator is a function that gives one value at a time using yield.
After giving one value, it pauses and resumes when called again until all values are returned.
Generators work only inside a function because yield can be used only inside a function.
Syntax:
def my_generator():
yield value
Example:
def numbers():
for i in range(1, 3):
yield i
for num in numbers():
print(num)
Output:
1 2
Why Use Generators?
- It returns one value at a time using yield, saving memory.
- It improves performance by not storing all values at once.
- It can easily process big datasets.
- Generators are very useful and recommended to use.