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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.
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the bracket takes time lol
methods were utiliezed:
forEach、typeof、includes、?:
"==" is interesting test
until now i recorgnize the benefit of arrow function's magic
This comment is hidden because it contains spoiler information about the solution
This comment is hidden because it contains spoiler information about the solution
map? creat a new array ,it sounds much more logical than slice method,and map method could smoothly do a loop
what a crazy code lol. Just utilize slice method to create a totally new array.🤔😴😴🤩