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lambda expression python

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Grotesque Gibbon answered on January 11, 2020 Popularity 10/10 Helpfulness 2/10

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#define a function inline
#(syntax) lambda parameter_list: expression     parameter_list is comma separated
#lambda implicitly returns its expression's value, thus equivalent to any simple fxn of form...
'''
def function_name(parameter_list)
    return expression
'''

numbers = [10, 3, 7, 1, 9, 4, 2, 8, 5, 6]
print(list(filter(lambda x: x%2 != 0, numbers))) #here filter() takes a fxn as 1st argument
# [3, 7, 1, 9, 5]

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Tags: anonymous-function expression function inline lambda python

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Contributed on Aug 09 2022

Grotesque Gibbon

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lambda python

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even = lambda a: True if a % 2 == 0 else False
even(6) ## True
even(9) ## False

Popularity 10/10 Helpfulness 4/10 Language python

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Tags: lambda la

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Contributed on Jan 11 2020

Strange Sandpiper

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lambda python

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121

add = lambda a, b : a + b
add(3,6) ## 9

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Contributed on Jan 11 2020

Strange Sandpiper

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python lambda

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multiply = lambda x,y: x * y
multiply(21, 2) #42
#_____________
def myfunc(n):
  return lambda a : a * n

mydoubler = myfunc(2)
print(mydoubler(11)) #22

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Contributed on May 09 2020

Ravik Morozov

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lambda function in python

Comment

Lamda is just one line anonymous function
Useful when writing function inside function
it can take multiple arguments but computes only one expression

Syntax:
   x = lambda arguments : expression

Popularity 10/10 Helpfulness 4/10 Language python

Source: Grepper

Tags: function functio

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Contributed on Jul 25 2020

Elated Earthworm

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lambda function in python

Comments(1)

# This is a normal function:
def Function(Parameter):
  return Parameter

# And this is a lambda function
Function = lambda Parameter : Parameter

"""

They are both equivalent and do the exact same job (which is
to take in a parameter and output it in this scenario) the reason
lambda functions exist is to make code shorter and readable since
a lambda function only takes up one line.

Lambda functions are mostly used for simple things
Whereas defining functions are used for complex things.

You do not have to use lambda functions, it's all about preference.

An example of where it would be used is in basic arithmetics, im only
going to show addition, I think you can work out the rest:

"""

Add = lambda a, b: a + b

print(Add(3,4))
# Output:
# >>> 7

# Its equivalent:

def Add(a, b):
  return a + b

print(Add(3,4))
# Output:
# >>> 7

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Tags: function functio

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Contributed on Sep 17 2020

yungmaz13

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python lambda

Comment

# lambda functions creates small anonymous function
# create an add functions with that takes two numbers and returns the sum
add = lambda num1, num2: num1 + num2
print(add(9, 5))
# output 14

# double the numbers in a list
print(list(map(lambda num1: num1 * 2, [1, 2, 3, 4])))
# output [2, 4, 6, 8]

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Source: codefreelance.net

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Contributed on Sep 04 2022

Jerome Scott

0 Answers Avg Quality 2/10

lambda function in python

Comment

Lamda is just one line anonymous function
Useful when writing function inside function
it can take multiple arguments but computes only one expression

Syntax:
   x = lambda arguments : expression

Popularity 10/10 Helpfulness 3/10 Language python

Source: Grepper

Tags: function functio

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Contributed on Jun 04 2020

Viper

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lambda en python

Comment

doblar = lambda num: num*2

doblar(2)

Popularity 10/10 Helpfulness 3/10 Language python

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Contributed on Dec 12 2020

Disgusted Duck

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lambda and function in python

Comment

Table = lambda Table_of,Multiply_by: (Table_of*Multiply_by)
print("3 * 9 = ",Table(3,9))

def Concatinate(first_name, last_name):
    return first_name + " " + last_name
print("Concatinate using functions your name is:- {}".format(Concatinate("Harit","rai")))

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Tags: function functio

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Contributed on Aug 04 2021

Tech Brigadier

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lambda functions python

Comment

remainder = lambda num: num % 2

print(remainder(5))

Popularity 10/10 Helpfulness 3/10 Language python

Source: stackabuse.com

Tags: lambda la

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Contributed on Dec 13 2020

Terrible Turtle

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lambda expression python

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