Lambdas

 A Lambda is an anonymous function. Places like AWS have services set up entirely just to host these simple functions that don't require a ton of code or backend.

To run the Python here, I go back to Google Colaboratory; Check out my Lambda book here

 

Ex. 1

 

g = lambda x: 3*x + 2

g(3)

 

 

Simple. 

Ex. 2

 

full_name = lambda fn, ln: fn.strip().title() + " " + ln.strip().title()

full_name("   Ember", "Serros")

 

 

Notice the spaces in front of the first name (' Ember') 

 

 

Ex. 3

 

 

def func(x,y):

  """Does things"""

  func2 = lambda x: x + y+3

print(func(2,7))

 

Using def seems to be hit or miss. This returns None, which technically is correct, 

but I'm expecting a number (12). It's missing a return statement;

 

return func2(x) + 3

 

 

 

Ex. 4

 

def func(x,y):

  funct2 = lambda x: x+y+5

  return funct2(x) + 6

print(func(3,78))

 

Works just fine. 

 

 

Ex. 5

 

def bqf(a,b,c):

  frog = lambda x: a*x**2 + b*x + c

  return frog(c) + 6

print(bqf(5,5,1))

 

Also works.