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The value of @@classvar has been changed to 'kiwi kiwi waaai!!' This shows that @@classvar is "shared" across parent and child classes.The assignment operation is one of the simplest operations so it seems natural to use the simplified conditional in Ruby instead of a classic if/else. I think @khmariem is right in principle, but in practice I don't think I've seen many assignments in ternary ops.
It first evaluates an expression for a true or false value and then executes one of the two given statements depending upon the result of the evaluation.
The conditional operator has this syntax − Sequence ranges in Ruby are used to create a range of successive values - consisting of a start value, an end value, and a range of values in between.
As someone who recently encountered basically this exact example, my opinion is that assignments should stay out of ternary, mainly because of humans difficulty in parsing statements effectively - I feel there are too many chances to misunderstand what the statement is trying to communicate.
has right association: 2 ** 3 ** 2 == 2 ** (3 ** 2) == 2 ** 9 == 512 instead of: 2 ** 3 ** 2 == (2 ** 3) ** 2 == 8 ** 2 == 64 blocks have lower precedence than the above operators, followed by do/end blocks.
Array accesses with  can be thought of as having a higher precedence than any above operator. ~ can be overridden (defined for new classes, or redefined for existing operations).
Note that rescue, if, unless, while, and until are operators when used as modifiers in one-liners (as in the above examples) but can also be used as keywords. It is used to force the following expression to evaluate to a boolean.This technique is considered non-idiomatic and poor programming practice, because there are more explicit ways to force such a conversion (which is rarely needed to begin with).Assignment in Ruby is done using the equal operator "=".Here, the conditional operator is being used to select between two strings.The entire operator expression is everything including the conditional, question mark, two strings, and the colon.The general format of this expression is as follows: conditional ? If the conditional expression is true, then the operator will evaluate as the true expression.Otherwise, it will evaluate as the false expression.In Ruby, these sequences are created using the ".." and "..." range operators.The two-dot form creates an inclusive range, while the three-dot form creates a range that excludes the specified high value. is a special operator that takes the form of a method call to determine whether or not the passed expression is defined.Ruby supports a rich set of operators, as you'd expect from a modern language. For example, a + b is interpreted as a.+(b), where the + method in the object referred to by variable a is called with b as its argument.For each operator (+ - * / % ** & | ^ There is one more operator called Ternary Operator.