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Never write another loop again

Jimmy Klein on March 01, 2024

Always with the goal of improving my way of writing code, I discovered a few years ago Adam Wathan and his book Refactoring to Collections. And suf...
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lito profile image
Lito •

Adding Arrow functions and First Class Callable Syntax:

<?php

class integer
{
    public function doubleAllPositiveValue(array $numbers): array
    {
        return array_map(
            $this->getDoubleValueCallback(...),
            $this->keepOnlyPositiveValue($numbers)
        );
    }

    private function getDoubleValueCallback(int $number): int
    {
        return $number * 2;
    }

    private function keepOnlyPositiveValue(array $numbers): array
    {
        return array_filter($numbers, fn ($number) => is_integer($number) && ($number > 0));
    }
}
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Jimmy Klein •

Thank you 🙏
I don’t do it because the problem is still the same, the order of the instructions is still weird with array functions.

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lito profile image
Lito •

Laravel collections don't solve anything in terms of iterations in the code, they simply change the place of the loops, and in many cases in a much less efficient way. I only use Laravel Collections with my own data in a few places in a controlled way. When you work with large amounts of data they are a huge bottleneck.