NISN

A NISN has 10 digits. No official document describes an internal structure or check digit, so NusaIndex checks length, characters, and that the number is not all zeros.

Functions

Go	TypeScript	Returns
nisn.Valid(s)	nisn.isValid(s)	Whether s is a well-formed NISN
nisn.Parse(s)	nisn.parse(s)	{ nisn } with separators removed
nisn.Format(s)	nisn.format(s)	10 digits
nisn.Mask(s)	nisn.mask(s)	Last 4 digits visible

Accepted separators: space, . and -.

Errors

length, charset, serial.

Example

Go

package main

import (
  "fmt"

  "github.com/haikalmumtaz233/nusaindex/nisn"
)

func main() {
  fmt.Println(nisn.Valid("6299763315"))

  parsed, err := nisn.Parse(" 6299763315 ")
  if err == nil {
    fmt.Println(parsed.Number)
  }

  formatted, err := nisn.Format("6299763315")
  if err == nil {
    fmt.Println(formatted)
  }

  fmt.Println(nisn.Mask("6299763315"))
}

TypeScript

import * as nisn from "nusaindex/nisn";

console.log(nisn.isValid("6299763315"));

const parsed = nisn.parse(" 6299763315 ");
if (parsed.ok) {
  console.log(parsed.value.nisn);
}

const formatted = nisn.format("6299763315");
if (formatted.ok) {
  console.log(formatted.value);
}

console.log(nisn.mask("6299763315"));

Output

true
6299763315
6299763315
******3315