They implicitly return a new array. This is not true for all the methods that you have mentioned. Only map, filter will return brand new array. But reduce you can get a single value, It can be an array also. But some and every returns boolean value.
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They implicitly return a new array. This is not true for all the methods that you have mentioned. Only map, filter will return brand new array. But reduce you can get a single value, It can be an array also. But some and every returns boolean value.