Skip to main content

Timeline for answer to javascript : filter array of objects using another array as filter by mhodges

Current License: CC BY-SA 3.0

Post Revisions

7 events
when toggle format what by license comment
May 22, 2017 at 15:09 comment added mhodges @NeverGiveUp161 If === -1 gives you the unmatched, and "not unmatched" gives you matched, then not === -1 (AKA !== -1) will give you the matched. You can also say > -1 to save a couple keystrokes. Or even fancier, ~query.indexOf(...) The tilde operator does a bitwise NOT, and only returns false if the value is equal to -1, and returns true for everything else. Which in the case of indexOf() is actually perfect (it is just more ambiguous as to what the code is doing)
May 22, 2017 at 11:53 comment added NeverGiveUp161 @mhodges: This filters the unmatched element,any idea on matched? this part === -1
May 19, 2017 at 15:52 comment added mhodges @zfrisch I wasn't the one asking about the downvotes, however. lol someone came by and downvoted every answer and then left - it happens occasionally for no reason. I know my solution is beneficial to the OP, so I'm not too worried about it.
May 19, 2017 at 15:50 comment added mhodges @zfrisch I agree, my attempt was to keep the code as close to the OP's original code as possible.
May 19, 2017 at 15:40 comment added Nope @doutriforce There is nothing wrong with the answer and I didn't downvote and I don't disagree with you at all that it could be helpful but as I said, I assume who ever downvoted did not find the answer useful and they don't have to explain why as I'm sure they would have left a comment already if they felt it was worth it to them.
May 19, 2017 at 15:36 comment added zfrisch There's nothing wrong with this answer, and I personally didn't downvote it. My guess is you might be getting downvotes due to the fact that it isn't following a functional paradigm.
May 19, 2017 at 15:14 history answered mhodges CC BY-SA 3.0