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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.
isNaN is entirely unrelated to whether a string represents a number
it answers the question of whether a value is the particular value
NaN
you could of course hope that failed conversion to Number results in
NaN
, but, yikes.(also, redundant ternary, it turns
true
totrue
andfalse
tofalse
, you already have that same without boolean applying that operation)Thanks!
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