This Ternary Operator lesson is for a beginner. Read the short notes, run each example, then change one name or number and run it again.
A conditional expression chooses one of two values in a single line. Read it as the true value, then if, the test, else, and the other value.
Use it for a short label. Switch to a normal if block when either side needs more than one step.
Example 1: Start here
The test sits in the middle, not at the start.
score = 82 # a whole number
band = "pass" if score >= 70 else "retry" # text
print(band)
Example 2: Pick one word
The value before if is used when the test is true.
score = 82 # a whole number
label = "Pass" if score >= 80 else "Try again" # text
print(label)
Example 3: Pick a number
The value after else is used when the test is false.
seats = 0 # a whole number
fee = 0 if seats == 0 else 25000 # use the value before if when the test is true
print(fee)
Example 4: Use it in print
You can put the same one-line choice directly inside print.
score = 70 # a whole number
print("Pass" if score >= 80 else "Try again") # a comparison is True or False
The test sits in the middle, not at the start.
