Lambda confusion

I am struggling with lambda.I don't know how to use lambdaūü§®Can anyone help me with examples?

8th Jul 2019, 3:27 PM
Little KITE
Little KITE - avatar
4 Respuestas
+ 4
Nvm, I searched your page and noticed you're studying python. Here are some information and examples. https://www.w3schools.com/python/python_lambda.asp
8th Jul 2019, 3:34 PM
Chris Coder
Chris Coder - avatar
What is lambda?
8th Jul 2019, 3:31 PM
Chris Coder
Chris Coder - avatar
Lambda is an expression, that returns a function. lambdas: -Can only have 1 line of statements, that should end up in 1 single object. -Do not necessarily need to be given a name in declaration. -Can be called straight after declaration. Declaring function with def: def a(x): print(x) Declaring the same function with lambda: a = lambda x: print(x) Calling a lambda function straight after declaration without giving it a name: (lambda: print("Hello"))() print((lambda x: x + x * 8)(7)) #7 + 7 * 8 = 63 You can use as complex calculations as you want in lambda functions, but it must end up in 1 single object, which means that you can only use statements, that return a value. For example basic if statement does not return a value, you can not do: x = (if y: print(z)), because if statement self does not return any values.
8th Jul 2019, 5:57 PM
Seb TheS
Seb TheS - avatar
- 1
If we want to perform an operation squaring the numbers like n*n we have to define a function def and have to create a name. For example, def square(n): result n*n result = square(7) print(result) Output = 49. Here in python we can also create a function without using name . For example, lambda n : n * n We know functions in python are objects. So, f = lambda n : n * n result = f(7) print(result) Output : 49 Hope you understand :)
19th May 2020, 2:44 PM
Raghu Vamsi Yaram
Raghu Vamsi Yaram - avatar