Python入門
lambda（ラムダ式、無名関数）と三項演算子

def 無名(引数1, 引数2=値, ...):
    return 戻り値の式

lambda 引数1, 引数2, ... : 戻り値の式

lambda 引数1, 引数2=値: 戻り値の式
lambda *args1, **kwargs: 戻り値の式

lang = ("Python","VBA","GAS","Java","C","JavaScript")
print(sorted(lang,key=len))

def rev(s):
    return s[::-1]
lang = ("Python","VBA","GAS","Java","C","JavaScript")
print(sorted(lang,key=rev))

lang = ("Python","VBA","GAS","Java","C","JavaScript")
print(sorted(lang,key=lambda s:s[::-1]))

if 条件式:
    真の式
else:
    偽の式

真の式 if 条件式 else 偽の式

print((lambda n:"OK" if n % 3 == 0 else "NG")(3))
print((lambda n:"OK" if n % 3 == 0 else "NG")(5))

print(list(filter(lambda n:n if n % 3 == 0 else None, range(1,11))))

print(list(map(lambda n:n * 3 if n % 3 == 0 else n * 2, range(1,11))))

print(list(map(lambda n:"Fizz Buzz" if n % 15 == 0 else "Fizz" if n % 3 == 0 else "Buzz" if n % 5 == 0 else n, range(1,21))))