Evaluate bigInt usage

[olegbespalov]

What?

Currently, we do parse bigInt as regular integers

k6/js/modules/k6/browser/common/remote_object.go

Lines 86 to 91 in 745f0d4

	case runtime.TypeBigint:
	n, err := strconv.ParseInt(strings.ReplaceAll(val, "n", ""), 10, 64)
	if err != nil {
	return nil, BigIntParseError{err}
	}
	return n, nil

Which could not work if we face a really big number, like:

package main

import (
	"fmt"
	"math/big"
	"strconv"
	"strings"
)

func main() {
	// A large number string
	bigIntString := "123456789012345678901234567890"

	bigInt := new(big.Int)
	_, success := bigInt.SetString(bigIntString, 10) // Base 10

	if !success {
		fmt.Println("Failed to parse big integer")
		return
	}
	fmt.Println("Parsed big.Int:", bigInt)

	n, err := strconv.ParseInt(strings.ReplaceAll(bigIntString, "n", ""), 10, 64)
	if err != nil {
		fmt.Println("Failed to parse int64 " + err.Error())
		return
	}

	fmt.Println("Parsed N:", n)
}

So probably we should use the bigInt type there if possible 🤷

Why?

Actual support of bigInt