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To exclude the current item in a ‘map function, you can simply return ‘null’ or ‘undefined. 4 C This will remove the current item from the resulting array. For example: typescript const numbers 1, 2, 3, 4, 5; Copy code const filteredNumbers numbers.map( (number) if (number 3) return null; exclude number 3 return number; ); console.log(filteredNumbers); Output: 1, 2, 4, 5 In this example, the ‘map function is used to iterate over the ‘numbers array. If the current ‘number’ is equal to 3, the function returns ‘null’, effectively excluding that number from the resulting array. Otherwise, it returns the ‘number as is. The resulting ‘filteredNumbers array only contains the numbers 1, 2, 4, and 5. p does a map function always return something? Yes, a ‘map’ function always returns an array with the same length as the original array that was mapped over. Even if you don’t explicitly return a value from the ‘map function, it will still return an array with " undefined values for each element.