validation: add checksum validation of Swedish organization numbers (#38)

alexanbj · web-flow · commit b1c13edfc49a · 2025-03-06T08:28:52.000+01:00
diff --git a/.changeset/tall-symbols-enjoy.md b/.changeset/tall-symbols-enjoy.md
@@ -0,0 +1,5 @@
+---
+"@obosbbl/validation": patch
+---
+
+add checksum validation of Swedish organization numbers. Previously we only checked the length of the number.
diff --git a/packages/validation/src/se.ts b/packages/validation/src/se.ts
@@ -81,7 +81,7 @@ export function validateOrganizationNumber(
     value = stripFormatting(value);
   }
 
-  return /^\d{10}$/.test(value);
+  return /^\d{10}$/.test(value) && mod10(value);
 }
 
 type NationalIdentityNumberFormat = 'short' | 'long';

-Original file line number
+Diff line change
@@ @@ -0,0 +1,5 @@ @@
 +---
 +"@obosbbl/validation": patch
 +---
++
 +add checksum validation of Swedish organization numbers. Previously we only checked the length of the number.
Original file line number	Diff line number	Diff line change
`@@ -81,7 +81,7 @@ export function validateOrganizationNumber(`
`81`	`81`	`value = stripFormatting(value);`
`82`	`82`	`}`
`83`	`83`
`84`		`- return /^\d{10}$/.test(value);`
	`84`	`+ return /^\d{10}$/.test(value) && mod10(value);`
`85`	`85`	`}`
`86`	`86`
`87`	`87`	`type NationalIdentityNumberFormat = 'short' \| 'long';`