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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. 
 

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