Q:

Check if value is in a List using Lambda Function in Python

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mahmoud2506
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2022-05-23
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Given a list and an element, we have to check whether the element is present in the list or not using the Lambda function.

Example:

Input: 
list1 = [10, 15, 20, 25, 30]
ele = 15
Output:  Yes

Input: 
list1 = [10, 15, 20, 25, 30]
ele = 12
Output:  No
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mahmoud2506
2022-05-23
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Method 1: Using lambda and count() function

There is an integer list, define a lambda function that will take the list and will return the count of the given element.

Python code to check if value is in a list using lambda and count() function

# Using lambda and count() function

list1 = [10, 15, 20, 15, 30]
ele = 15

# Lambda function to check an element
# in the list
countFunc = lambda list1 , ele : list1.count(ele)

count = countFunc(list1, ele)

if(count):
	print("Yes, total count of", ele, "is",count)
else:
	print("No")

Output:

Yes, total count of 15 is 2

Method 2: Using lambda and in keyword

There is an integer list, define a lambda function that takes the list and an element to check and returns True if element presents in the list; False, otherwise using in keyword.

Python code to check if value is in a list using lambda and in keyword

list1 = [10, 15, 20, 15, 30]
ele = 15

# Lambda function to check an element
# in the list
countFunc = lambda list1, ele: True if ele in list1 else False

if(countFunc(list1,ele)):
	print("Yes")
else:
	print("No")

Output:

Yes

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