PYTHON LOOPS

What is Loop?

• A sequence of statement which repeated over a time this process is said to be loops.A loop statement allows us to execute a statement or group of statements multiple times.
• A loop is used to iterate over the python objects and perform any logic with the data

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Types of Loops?

What is for loop?

• For Loop: Executes a block of code a specific number of times. It's commonly used when the number of iterations is known.

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For example:

X = [1,2,3,4,5,8,10]

for i in x:

if i > 5:

print(“yes”)

print(i)

What is while loop?

While Loop: Repeats a block of code as long as a specified condition is true. It's useful when the number of iterations is not known.

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For example:

i = 10

while i < 20

print(“yes”)

i = i+1

What is nested loop?

• A nested loop in Python is a loop inside another loop. The "outer" loop runs once, and for each iteration of the outer loop, the "inner" loop runs completely.

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For example:

x = [1,2,3,4,5,6,7]

for i in x:

for j in x:

print(“yes”)

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What is loop control statement?

• Loop control statements in Python are used to change the execution flow of loops.

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• The most common loop control statements are break, continue, and pass. Each serves a different purpose

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What is break ?

• The Break statement is used to exit a loop immediately, regardless of the loop's condition.

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For Example:

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for i in range(10):

if i == 5:

break # Exit the loop when i is 5

print(i)

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What is continue?

• The continue statement is used to skip the current iteration of a loop and move to the next iteration.

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For Example:

for i in range(10):

if i % 2 == 0:

continue # Skip the even numbers

print(i)

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What is pass?

• The pass statement is a null operation; it is used when a statement is required syntactically but you do not want any command or code to execute.

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For Example:

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for i in range(5):

if i == 3:

pass # Do nothing when i is 3

print(i)

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