Ternary conditional operator in Python
The ternary conditional operator is a shorthand way to write an if-else statement in Python. It can be especially useful for concisely expressing simple conditional logic in a single line of code.
Here's the basic syntax of the ternary operator:
value_if_true if condition else value_if_false
The condition is a boolean expression that is evaluated first. If it is True, then the expression returns value_if_true; otherwise, it returns value_if_false.
Here's an example of using the ternary operator to assign a value to a variable based on a condition:
x = 10 y = 20 max_value = x if x > y else y print(max_value) # Output: 20
In this example, max_value is assigned the value of y because x > y is False.
You can also use the ternary operator in a more complex expression, such as the following:
x = 10 y = 20 z = 30 max_value = x if x > y and x > z else y if y > z else z print(max_value) # Output: 30
In this example, the ternary operator is used to find the maximum value of x, y, and z. The first part of the expression (x if x > y and x > z) checks if x is the maximum value. If it is, then x is returned. If not, the second part of the expression (y if y > z) is evaluated, and if y is the maximum value, then y is returned. Otherwise, the final part of the expression (z) is returned.
You can also use the ternary operator to return a value based on a condition within a function, like this:
def get_max_value(x, y, z): return x if x > y and x > z else y if y > z else z max_value = get_max_value(10, 20, 30) print(max_value) # Output: 30