Re: [DISCUSSION] Adding the "is_integer_safe()" function

Hello Rowan, Le ven. 25 juil. 2025 à 23:10, Rowan Tommins [IMSoP] <imsop.php@rwec.co.uk> a écrit : > 1) You need to flesh out your proposal to be explicit about *what* it would do, as well as why. Indeed, I was too focused on the why and I forgot the most important part. The idea is to have a function that receives an integer or a float and returns bool if the provided argument is inside the safe Javascript integer interval, namely [-(2^53)+1 ; (2^53)-1]. It's signature would be is_integer_safe(int|float $num): bool. This interval is considered safe because the floating-point mantissa is stored on 52 bits. This is nicely described in MDN [1]. > 2) The function needs a better name, to avoid confusion over what "safe" means. I agree with you. I haven't come up with a better name yet as this one could be ambiguous. Best, Alex [1] https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number/MAX_SAFE_INTEGER#description