function default value
function multiply(a, b = 1) { return a * b } multiply(5, 2) // 10 multiply(5) // 5 multiply(5, undefined) // 5
Source: developer.mozilla.org
Default Parameter Function
def my_country(country = "Argentina"): print("I am from " + country) my_country("Canada") my_country("India") my_country() my_country("Mexico")