Advanced Method: Python Lambda if else elif Functions

How to Use Python If Else Elif Functions in Python:

Python Lambda if else elif Functions are anonymous function means the function is without a reputation. As we already know that the def keyword is employed to define a standard function in Python. Similarly, the lambda keyword is employed to define an anonymous function in Python.

 Python Lambda Function Syntax:.

lambda arguments: expression 

• This function can have any number of arguments but only 1 expression, which is evaluated and returned.
• One is liberal to use lambda functions wherever function objects are required.
• you would like to stay in your knowledge that lambda functions are syntactically restricted to one expression.
• it’s various uses specifically fields of programming besides other styles of expressions in functions.

Let’s observe this instance and take a look at to know the difference between a traditional def defined function and python lambda if else elif function. this can be a program that returns the cube of a given value:

 

Lambda Function Example

# Python program to demonstrate
# lambda functions


string ='Pystackcode'

# lambda returns a function object
print(lambda string : string)

OUTPUT

<function <lambda> at 0x7f65e6bbce18>

In this above example, the lambda isn’t being called by the print function but simply returning the function object and also the memory location where it’s stored.
So, to create the print to print the string first we’d like to call the lambda so the string will get pass the print.

 

Example:

# Python program to demonstrate
# lambda functions


x ="Pystackcode"

# lambda gets pass to print
(lambda x : print(x))(x)

OUTPUT

Pystackcode

 

Example 2: Python Lambda Function with if-else

# Example of lambda function using if-else
Max = lambda a, b : a if(a > b) else b

print(Max(1, 2))

OUTPUT

2

 

Advanced Methods of Python if else elif Functions

Lambda function can have multiple parameters but have only 1 expression. This one expression is evaluated and returned. Thus, we are able to use lambda functions as a function object. during this article, we’ll learn the way to use if, else & elif in Lambda Functions.

Using if-else in lambda function

The lambda function will return a worth for each validated input. Here, if block are returned when the condition is true, and else block are going to be return while the condition is false.Here, the lambda function will return statement1 when if the condition is true and return statement2 while if the condition is false.

SYNTAX

lambda <arguments> : <statement1> if <condition> else <statement2>

 

Here, the lambda function will returned statement1 while if the condition is true and returned statement2 is false in the if condition

result = lambda x : f"{x} is even" if x %2==0 else f"{x} is odd"

print(result(12))
print(result(11))

OUTPUT

12 is even
11 is odd

 

Using if else & elif in lambda function

New we use nested if, if-else in lambda function. For, create a lambda function to check if the two number is equal or greater or lesser implementing lambda function

Syntax:

 lambda <args> : <statement1> if <condition > ( <statement2> if <condition> else <statement3>)

Here, statement1 are going to be returned when if the condition is true, statement2 are going to be returned when elif true, and statement3 are going to be returned when else is executed.

 

Example

Here, we passed 2 numbers to the lambda function. and check the relation between them. that’s if one number is bigger or equal or lesser than another number

result = lambda x,y : f"{x} is smaller than {y}" \
if x < y else (f"{x} is greater than {y}" if x > y \
            else f"{x} is equal to {y}")



print(result(12, 11))
print(result(12, 12))
print(result(12, 13))

 

OUTPUT

12 is greater than 11
12 is equal to 12
12 is smaller than 13