Table of Contents
In Ruby, we can use and, &, &&. And also or, |, || we can use. I researched about their difference.
Environment
- Ruby 2.4.0
and, &, && は論理積を、 or, ||, | は論理和を期待通り計算してくれます。
Difference
The most important difference is operator priority and right side evaluation.
Priority
Here is operator priority.
&|,^>,>=,<,<===,!=&&||..,...?:=notand,or
Therefore, calculation is as follows.
& is bit operation in the above example, but it can also handle bool value operation.
Right Side Evaluation
演算子の右側を評価するか否かが違います。 これは優先順位によるものでもあるのですが。
and, && doesn’t evaluate right side when the left side is false. It is like AndAlso in Visual Basic.
