Propsal: enable seeding the random source

[Veermove]

Hello,
Would it be possible to add a way to seed the random source used in RandomString? Currently the RandomString calls rand.Int64 which calls stdlib rand.Int64. I know there is a way to use stdlib rand.Seed but since it was depracated you have to jump through hoops to enable that behavior.

It would be great if you could do

lo.Seed(42)
lo.RandomString(...)

which would generate the same string every time. Of course the default behavior should stay as is, that way i don't think this would be a breaking change.
The motivation being predictable testcases.

In anyway, thanks for this great library

[samber]

Hey @Veermove

The library uses math/rand/v2 when go >= 1.22 and math/rand for lower versions. Therefore we need to support both Rand implem.

// math/rand
type Source interface {
	Int63() int64
	Seed(seed int64)
}

// math/rand/v2
type Source interface {
	Uint64() uint64
}

I would suggest a wrapper that support both and transform a uint64 value into int64 with myUint64 & ((1 << 63) - 1).

WDYT ?