Map manipulates a slice and transforms it to a slice of another type.

Must0 has the same behavior as Must, but callback returns no variable.

Must1 is an alias to Must Play: https://go.dev/play/p/TMoWrRp3DyC.

Must2 has the same behavior as Must, but callback returns 2 variables.

Must3 has the same behavior as Must, but callback returns 3 variables.

Must4 has the same behavior as Must, but callback returns 4 variables.

Must5 has the same behavior as Must, but callback returns 5 variables.

Must6 has the same behavior as Must, but callback returns 6 variables.

ToPtr returns a pointer copy of value.