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JavaScript React Basics (retired) Thinking in Components Decomposition and Loops Review

Posted by Ron Gootman
Ron Gootman
24,409 Points

array.filter

It's obvious that the answer was array.map, however, array.filter will return an array as well, so why can't that be a valid answer?

1 Answer

Steven Parker
Steven Parker
229,732 Points
Steven Parker
Steven Parker
229,732 Points

With "filter", you can only return an array that is a subset of the original. But with "map", the array returned can be created by changing the original array, which is what is required by the question conditions.