3 ms·

God, I hate this crap. Edge cases != useful knowledge

• CognitiveLens 14y ago
  Agreed. It seems like the lesson is "don't write ambiguous JS, because it will bite you" - I'm not sure you have to know the nature of every bite in order to be a JS expert, because a JS expert should generally be writing very predictable code!
  • berntb 14y ago
    Many years ago, I had a bookmark in my Harbinson-Steele's C book, for the precedence of operators. After a while, I decided that was stupid and removed the bookmark -- if I ever needed to look at operator precedence, then I should use parentheses. That said, to understand the edge cases are valuable, because you should recognize when you get close to them (not only in your own code).
• jacobr 14y ago
  Edge cases !== useful knowledge FTFY
• yen223 14y ago
  The second question (0.1 + 0.2) + 0.3 == 0.1 + (0.2 + 0.3) is not an edge case, unfortunately.