each

Iterate over all the items in an list or tuple. Use this functions instead of map when you are not interested in the return value.

This function does not generate a change.

Function

array.each(callback)

Arguments

Argument	Type	Description
callback	closure (required)	Closure to execute on each value.

Explanation of the callback argument:

Iterable	Arguments	Description
array	item, index	Iterate over all items in the array. Both item and index are optional.

Return value

None

Example

Generate the first n values of the Fibonacci sequence.

fibonacci = |n| {
    seq = range(2);

    // Return the first `n` items when `n` is less or equal to 1.
    if (n <= 1) {
        return seq[:n];
    };

    // Append the sum of the last two items, and do this `n` minus 2 times.
    // Function `each` is used since we do not use the return value.
    range(2, n).each(||seq.push(seq[-2]+seq[-1]));

    // Return the sequence.
    seq;
};

// Return the first 10 items of the Fibonacci sequence.
fibonacci(10);

Return value in JSON format