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Patrick Burke
5,885 PointsWhy if !(car1_speed == car2_speed) rather than just writing "!="
Is this good practice? Does my method of if (car1_speed != car2_speed) make a difference in odd cases?
Steve Hunter
57,712 PointsHi Patrick,
Is this a video or a challenge?
Like you, I'm struggling to see why your code isn't clearer but that depends on context and usage. If you can link to where this code is presented, that would help.
Steve.
Patrick Burke
5,885 PointsMy apologies, here is the link to the not operator lesson https://teamtreehouse.com/library/ruby-operators-and-control-structures/logical-operators/the-not-operator I am wondering why anyone would write The not operator is written by surrounding a condition with parentheses and an exclamation point. !(1 == 1) rather than (1 != 1)
1 Answer
Steve Hunter
57,712 PointsHi Patrick,
I think this is just Jason demonstrating the ! operator alone, rather than getting into the realms of != at the same time. It isn't supposed to be a demonstration of great coding practice, although that scenario could be a good solution in some situations, but rather showing how negating something using just the ! works.
The key thing here is that you understand both methods/approaches so your learning is complete in this area. Jason is keeping it very simple to highlight how ! works on its own.
Steve.
P.S. R.I.P. Jason - a great teacher.
Patrick Burke
5,885 PointsPatrick Burke
5,885 PointsI received this question Quiz Question 2 of 3 Would the following code return true or false? !(1 == 2) The answer is of course true but the syntax is clearly confusing. (1 != 2) would be much less confusing.