Loading collection data...
Collections are a way for you to organize kata so that you can create your own training routines. Every collection you create is public and automatically sharable with other warriors. After you have added a few kata to a collection you and others can train on the kata contained within the collection.
Get started now by creating a new collection.
(data - mean)*(data - mean) -> lol
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why not just not do return parens.length?false:true;
troll
nice, expect for the useless last line :
return parens.length === 0;would have been better ;)This comment is hidden because it contains spoiler information about the solution
using map (instead of for) is event better ;)
too much else/if, and last else statement is never reached