Ternary Operators

JavaScript supports a ternary operator-an operator that exists as a shortcut for if/else.

The ternary operator returns one of two possible expressions depending on a conditional check.
condition ? expression1 : expression2
So let's look at a typical example done with an if/else block.
if (totalPrice > 100)
{
    discount=.05;
}
else
{
    discount=0;
}

Now, let's look at the same code using a ternary operator.
discount = totalPrice > 100 ? .05 : 0;